Parallel Successions Of Perfect Fifths In The Bach Chorales

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Parallel successions of perfect fifths in the Bach choralesGeorge FitsiorisDepartment of Music, University of Athens, Greecefitsioris@music.uoa.grDarrell ConklinDepartment of Computing, City University London, UKconklin@city.ac.ukProceedings of the fourth Conference on Interdisciplinary Musicology (CIM08)Thessaloniki, Greece, 3-6 July 2008, http://web.auth.gr/cim08/Background in music theory. Although strictly prohibited since the 14th century, parallel fifths can be detected inmedieval and Renaissance music, mainly in cadential passages of works written even by composers such as Palestrinaand Lassus. In addition, as Brahms has pointed out (1980), almost all ‘great masters’ (17th-19th centuries) did notalways seem to care to avoid successions in parallel fifths. In his commentary upon Brahms’s facsimile, Schenkerargued that within the prolongation of one triad the rules of strict counterpoint may not apply; consequently that, “ consecutive octaves or fifths need not be considered wrong”. So, there are cases in which, even if parallel fifths appearin the score, they do not convey the effect of hollowness, emptiness or stillness that parallel fifths may have onlisteners. With respect to Bach’s four-part harmonizations of chorale melodies, Malcolm Boyd identified a couple ofcases in which parallel fifths do appear, suggesting that one could suspect, “ that either the text is at these pointscorrupt, or that Bach has not spotted the consecutives and would have corrected them if he had”.Background in computer science. There are few available tools for expressing and searching for complex relationalnetworks of notes such as the parallel fifth. The Humdrum toolkit (Huron, 1997) provides methods for transformingscores to harmonic interval successions, but it is difficult to formulate accurate (with high precision and recall) patternqueries for complex networks involving several properties of notes and simultaneities as arise in the parallel fifth. ThePROLOG logic programming language is very well suited to elegantly express and efficiently execute such queries.Aims. Since we are unconvinced by the argument that “ Bach has not spotted the consecutives”, we undertook adetailed computational search to find all passages containing parallel fifths in Bach chorales. After referring in short tothe reliability of certain widely circulating printed editions of Bach chorales, such as Breitkopf & Härtel, Schirmer, andEditio Musica Budapest, and chorales found in MIDI format on websites, we will account for all the cases of parallelfifths formed in Bach chorales; explain thoroughly the computational methods used to spot these consecutives; andanalyze each passage separately.Implications. For a thorough study of musical structure, a systematic and precise examination of all kinds of musicalprocedures is necessary. However, it is not possible for a music theorist/analyst to have full control of the infinitecompositional choices. As this paper demonstrates, computational queries with relational networks in music canprovide a first necessary and interesting step toward a better understanding of musical structure.The prohibition of parallel successions ofperfect consonances has been considered asone of the strictest rules that apply in allforms of Western music since the fourteenthcentury. Many scholars have pointed out thatRenaissance and tonal composers haveinvented and successfully applied techniquesto avoid parallel fifths and/or eights, such asthe familiar 5 – 6 – 5 and 8 – 10 – 8techniques (for the avoidance of parallel fifthsand eights respectively). However, there arecases for almost all ‘great masters’ where itseems that they did not always care to avoidsuch successions –especially successions inparallel fifths. It is well known that Brahmshimselfhaslistedapproximately140examples of successive fifths and octaves bycomposers from the sixteenth to thenineteenth century, and that HeinrichSchenker has published Brahms’s facsimile(Vienna, Universal edition, 1933) with acommentary of his own.i Schenker’s pointwas that within the prolongation of one triadthe rules of strict counterpoint may not apply,that in some cases “the consecutive octavesor fifths need not be considered wrong”ii. Inother words, there are cases in which, even ifconsecutive 5ths (or even 8ths) appear in thescore, these do not really function as parallelfifths; that is, they do not convey the effectof hollowness, emptiness or stillness that‘real’ parallel 5ths may have on listeners.Even a quick look at some scores shows thatin his four-part harmonizations of chorale

CIM08 - Conference on Interdisciplinary Musicology - Proceedingsmelodies Johann Sebastian Bach usually“went to considerable pains to avoidconsecutives”, as Malcolm Boyd argues.iiiGiven that some successions of this kind doexist in the Bach chorales, though, the goalof our project was to account for all cases ofconsecutives formed in the chorales, tounderstand why they appear and how theyfunction in each particular passage. However,comparing the scores presented in widelycirculating editions, such as the Breitkopf &Härtel and Schirmer editions, with thosefound in the revised and corrected edition ofthe ‘371’ (actually, 370) by Frieder Rempp,as presented in the Johann Sebastian Bach,Neue Ausgabe sämtlicher Werke, we came torealize that there are problems inherent inrelying exclusively on these editions of Bachchorales.ivrealize that, in these cases, Bach madespecial efforts to handle the voice-leading insuch a way that permitted him to ‘get rid’ ofthe parallel fifths altogether. Nevertheless, allthis would be futile since what appears as“Chorale No 273” is the one that concludesthe Cantata for the Reformation Sunday,BWV 80, and as shown in the Critical edition(as well as in Editio Musica Budapest) theparallel fifths identified by Boyd in this caseare due to errors found in the Schirmer andBreitkopf editions. By consulting the correctscore, one sees that no consecutives areformed between the external (or any other)voices.viIn fact, Boyd, using the 1941 Schirmer /Riemenschneider edition, is referring to twopassages in which parallel fifths appear; intrying to explain why such a parallel motionemerges in these cases, he suggests that onecould suspect that “either the text is at thesepoints corrupt, or that Bach has not spottedthe consecutives and would have correctedthem if he had”.v One of those passagesconcerns the ending of the first phrase ofchorale No 273 (Schirmer edition), Ein’ festeBurg ist unser Gott, in D Major, whereparallel 5ths seem to appear between thevoices of bass and soprano at the beginningof m. 2: F#-C# / E-B.Example 2. Chorale BWV 80 (No 75), first phraseAfter detailed research, carefully avoiding‘wrong’ scores found in certain printededitions of Bach chorales, we came up to theconclusion that in 18 passages Bach seemedto be tolerant with such ‘forbidden’successions. Below we explain in detail thecomputational methods used to retrievethese consecutives and we analyze each andevery case separately.Computational methodA computational query of the Bach choraleswas constructed for the identification ofparallel fifths (antiparallel fifths are notconsidered here). The query uses variousdifferent properties and relations of events(see Table 1) to express the concept of aparallel fifth. Four events (say, A, B, C, D)within two different voices indicate a parallelfifth if several conditions are met. Events Aand C, and events B and D, must be in thesame voice and meet: that is, not separatedby other events or rests. Events C and Dmust be simultaneous and must form a pitchclass interval of 7.The pitch intervalbetween events A and C, and events B and D,must be the same (i.e., parallel successionsExample 1. Chorale No 273, first phraseOne may wish to justify the existence of theconsecutives in this passage by comparingthe cadential pattern that closes the firstphrase with similar cadential passages byRenaissance composers. He /she may evenwanttoexaminetwootherBachharmonizations of the same melody (choralesno 20 and no 250 from the same edition) and2

CIM08 - Conference on Interdisciplinary Musicology - Proceedingspar5(A,B,C,D) ,I1 I2.are formed) and must not be zero.Theabove conditions can be precisely andcompactly encoded in the PROLOG logicprogramming language (Figure 1).Bach chorales were downloaded from the website www.jsbchorales.net. On this site is ncodedusingFinale,quantized to musical durations, and availableas MIDI and score files. Conveniently, theMIDI files are Type 1, with each voice withinthe chorale presented on an individual track,facilitating the determination of voice.Figure 1. The parallel fifth query in PROLOGTable 2 shows the filtered results, with voicesbetween which the consecutives are formed,the exact measure numbers for each case aswell as the specific pitches involved. It alsoindicates a rough characterization of the typeof parallel fifth (last column): whethercompletely exposed (exp); caused by theexistence of a non-harmonic tone, such as ananticipation (ant), a passing tone (pas), or aneighbortone(nei);causedbyanarpeggiation (arp); or, finally, appearingbetween the end of one phrase (under afermata) and the beginning of the next (fer).Chorales were converted from MIDI events toa PROLOG database comprising the basicpredicates pitch/2, duration/2, onset/2, andmeets/2, with other predicates simul/2,higher/2, intpc/3, and int/3 computed fromthe basic predicates. An initial run of thequery returned several cases that on closerinspection were not interesting. First, inchorales with expanded repeated sections,the query found a few parallel fifths thatoccur between the last chord of one part ofthe chorale and the chord that begins the(exact) repetition of that part; however, weare inclined to think that these should not beregarded as parallel fifths. Second, repeatedmaterial in the same chorale sometimescaused the same parallel fifth to be indicatedmore than once. Finally, we found severalcases of apparent parallel fifths that onfurther inspection were due to errors in theencoded MIDI files, or in a few cases errors inthe particular edition of the chorales used.RelationMeaningpitch(X,Y)event X has pitch Yduration(X,Y)event X has duration Yonset(X,Y)event X has onset time 146174194244248248263301323355361event X has a higher pitch than event Ysimul(X,Y)X and Y have the same onset pranobass/sopranotenor/sopranoMeasurem. 2m. 4m. 6m. 16m. 10mm. 9-10m. 7m. 6m. 17m. 7m. 4m. 6m. 2m. 6m. 3m. 8m. 15m. 12pitchesC-B / G-FE -D / B -A C-B / G-FE -D / B -A D-C / A-GB-F# / F#-C#A-B / E-F#D-C / A-GB-D / F#-AC-B / G-F#E-D / B-AD-E / A-BE-F / B-CA-G / E-DA-D / E-AE-B / B-F#E-D / B-AF-E / C-B xpneiantTable 2. 18 parallel fifths found in Bach choralesIdentified parallel fifthsEvent Y follows event X in the samevoice, and there is no rest betweenI is a directed pitch class intervalbetween events X and YI is a directed pitch interval betweenevents X and Yhigher(X,Y)MvtThe 18 excerpts presented in Table 2 should,in fact, be further reduced to 15. ConcerningBWV 194, 248.23 and 355(195) it isquestionable whether Bach really intended towrite parallel fifths.In the results there is a chorale in G Majorunder the title ‘BWV 194, Variation in G’, inwhich parallel fifths seem to be formedbetween tenor and alto in m. 7: C-G / B-F#.This chorale is not shown in EMB, but appearsTable 1. Event properties and relations3

CIM08 - Conference on Interdisciplinary Musicology - Proceedingsas chorale No 64 in the Schirmer andBreitkopf editions. Nevertheless, it is notincludedinCantata194–onlyaharmonization of the same melody in B Major appears in 194. In other words, thedesignation of the G Major chorale as ‘BWV194’ is incorrect. It is possible that either C.P. E. Bach, in his 1784-1787 edition,transposed the chorale from B Major to GMajor, or that he registered the G Majorchorale from a lost cantata that his fathermay have written. Although in the Schirmerand Breitkopf editions parallel fifths doappear in m. 7, in his corrected edition of the‘371’ chorales edited by C. P. E. Bach, FriederRempp does not show consecutives at thispoint.vii Therefore, the mistake presented atthe aforementioned editions should be‘credited’ either to C. P. E. Bach himself or tothe editors of these publications. In any case,it seems that J. S. Bach never intended towrite parallel fifths in m. 7.Breitkopf No 169), as well as the analysiscorpus show that there are parallel fifthsbetweentheexternalvoicesinthepenultimate measure, E-B / D-A:Example 3. BWV 355, mm. 15-16It seems that the melody of the soprano itselfappears with a wrong note in all editions.That is, in the last phrase of the chorale thesoprano should not begin with B4, but ratherwith A4 (repeated twice). So, no parallel fifthsare formed:Regarding BWV 248.23 (in G Major, notincludedinEMB),twodifferentharmonizations of that melody appear in EMB(chorale numbers 323 and 324), but in 4/4instead of 12/8 measure and in D and CMajor respectively. This is the chorale thatends the second Cantata of the ChristmasOratorio. The particular Cantata begins with aSinfonia in 12/8 measure which includes,among other things, ritornellos of a pastoralcharacter played by the oboes. The sameritornellos are recalled in the final chorale(again in 12/8), separating the two-bar vocalphrases. The four-part reduction of thisscore, with the ritornellos having beenremoved, appears as No 344 in the Breitkopfand Schirmer editions –however, in Breitkopfit is shown in 4/4 measure instead of the(correct) 12/8 indicated in the Schirmer; thelatter is also the score returned in the results(Table 2). The reduction shows that parallelfifths are formed between the triad under thepenultimate fermata and the one whichbegins the last phrase. Nevertheless, in thesource Cantata, an almost two-bar ritornellointervenes between these two triads. As withthe previous case, Bach did not writeconsecutives.Example 4. BWV 355, mm. 15-16, correct versionIt is possible that J. S. Bach found thismelody (with the ‘correct’ A4 instead of the‘wrong’ B4) in an anthology of choralemelodies printed around 1680 in Breslau.There is also another collection of choralemelodies from 1747, in which the correctversion appears. After Bach’s death, twoother editions with four-part harmonizationsappear before the edition of the ‘371’ by C. P.E. Bach: one by Friedrich Wilhelm Birnstielwith “200 vierstimmige Choräle” (Berlin,Leipzig 1765 and 1769) and another(anonymous)onewith252choraleharmonizations. In both of these editions, theultimate phrase begins with A4 in thesoprano. The C. P. E. Bach edition shows B4,but the corrected edition by Frieder Rempp(see footnote 7) reinstates A4 as the correctsoprano note at the beginning of the lastphrase. Therefore it is more likely that J. S.Bach has used this version of the melody inFinally, BWV 355 (195) is a special case. Allprinted editions (EMB No 195, Schirmer and4

CIM08 - Conference on Interdisciplinary Musicology - ProceedingsBWV 355 and did not intend to write parallelfifths.four-part Bach chorales –bear in mind thecase of BWV 248.23, discussed earlier, that isnot found in EMB. In any case, we suggestthat one could refer to such chorales as‘enriched’ chorales, in contrast to themajority of the ‘pure vocal’ chorales.Apart for the aforementioned 3 excerpts, 15cases of consecutive fifths now remain to beexamined. In two of them the successivefifths are formed between the last triad ofone phrase (the pause chord under thefermata) and the triad that opens the nextphrase: BWV 174 (151), and 301 (73).viiiBoyd, writing about consecutives appearing“at the end of one line and the beginning ofthe next” argues: “What is sometimesforgotten, or not understood, is that many ofthe ‘371’ chorales are taken from cantatas and that in the originals each line of thechorale was separated from the next by aninstrumentalpassage.Whentheseinstrumental passages are removed consecutives often appear in the vocal partswhere, in the original, they do not exist.There can be little doubt that Bach himselfwould have removed the consecutives if hehad intended to perform the chorales as wefind them in the ‘371’”.ixThe two chorales already mentioned, BWV174 (151), and 301 (73), are indeed purevocal chorales. In both of these chorales Bachdid not care to remove the consecutives eventhough no interludes intervene. For BWV 174we could not say why he chose to do so –probably because tenor and bass sing inunison.x Let us see, however, the first twophrases from BWV 301, where parallel fifthsappear between the male voices, A-E / D-A,in m. 3:Example 5. BWV 301 (73), mm. 1-5However, we think that this viewpoint israther incorrect. In the vast majority of the‘371’ there are no such instrumentalpassages. It is true that voices are doubledby instruments but no instrumental interludesintervene between the vocal phrases. Thereare, indeed, very few among those that weuse to know as the (371 or 388) ‘BachChorales’ found in printed editions, in whichinstrumental passages do separate the vocalparts. For example, in only 4 from the 388chorales included at EMB, instrumentalinterludes are actually presented between thevocal phrases: BWV 41 (208), BWV 79 (256),BWV 105 (191), and BWV 248 (323). Two ofthose four chorales also appearin theSchirmer and Breitkopf editions (no 11 and46) but, unlike the scores found at EMB, theinstrumental passages are not notated.Nevertheless, this does not mean that inmost of the remaining chorales there weresuch passages that the editors have simplyremoved –an examination of the scores ofthe corresponding Cantatas may easily provethe correctness of this viewpoint. One couldeven argue that such chorales (withinstrumental parts separating the vocal parts)should not be included among the authenticOne could argue that in this case the parallelfifths occur within a prolongation of the tonictriad, D minor. Indeed, the first two phrasesof the chorale could be perceived as onesingle phrase, with a momentary pause (andemphasis) at the intermediate dominant thatinsists in mm. 2-3. One could hear,especially, the downward stepwise motion ofthe upper voice, from D5 towards D4, that canbe perceived at a middle-ground level. Theinitial D5 as well as the anti-penultimate F4 ofthe soprano melody are both harmonizedwith a D minor triad in root position, whileunder the penultimate E4 one can hear boththe predominant and the dominant chordsthat drive the phrase towards the final tonic.As shown in the following middle-groundgraph, the tenor insists around A3 throughoutmm. 1-4. In fact, the E3 that appears on thedownbeat of m. 3 –actually, the pitch that isresponsible for the formation of the parallel5ths– is there just to make the dominant of Dminor, A Major, sound complete.xi It seemsthat Bach did not want to sacrifice thispossibility in order to avoid consecutives that,after all, do not function as such.5

CIM08 - Conference on Interdisciplinary Musicology - Proceedingschorale became sensitive as to avoid parallelfifths of the same type, between the samevoices.xii See the cadences which end the 3rdand the final phrase of BWV 263 (19):Example 6. BWV 301 (73), mm. 1-5: Middle-groundgraphIn 8 of the remaining 13 cases the parallelfifths are formed in the same way: that is, when the soprano moves from 2 to 1 inperfect authentic cadences, there is an eighth-note anticipation of the final 1. Theexistence of an eighth-note 7th of the dominant chord (a passing note in a 8 – 7 – 6succession, always at the tenor voice in these8 passages) leads to the formation of parallelfifths between tenor and soprano. In BWV 40(106) especially, this kind of parallel-fifthsuccession acquires an almost motiviccharacter, appearing four times (in mm. 2, 4,6, and 16 of the chorale). The same kind offormation also appears in BWV 146 (369, endof the 3rd phrase), 244 (371, end of the 2ndphrase), 263 (19, end of the 3rd phrase) and361 (207, final cadence).Example 7. BWV 263 (19), m. 6 and m. 12There remain only 5 chorale passages inwhich parallel fifths also seem to be formedand which could not be classified under theprevious categories: BWV 48 (139), 86 (88),99 (340), 248.33 (334) and 323 (238). Weshall see that in most of these passages theparallel fifths shown at the score may not beheard as ‘problematic’ cases of consecutives.In BWV 48 the consecutives are formed inthe penultimate measure, between tenor andalto (D-A / C-G), due to the presence of apassing note in the latter voice:However, it is surprising that Bach allowedthose fifths, given the fact that in numerousother cases he has taken special care toavoid consecutives in such harmonic-melodiccadential patterns. He has done this either bydelaying the appearance of the 7th of the V7(making it passing as a sixteenth note and,thus, not coinciding with the eighth-noteanticipation –see BWV 301, end of the secondphrase) or by using the dominant chord withits 7th from the start of the cadential V – Isuccession, or even by omitting the 7th of thedominant altogether. Counting only finalcadences in Bach chorales, one mayenumerate more than 20 such handlings. It ismore than impressive that one of those finalcadences in which Bach has taken care toavoid this kind of parallel fifths is in BWV 263(19), one of the chorales which, as we havealready said, Bach allowed such consecutivesin the middle of the chorale. In other words,one is led to assume (?) that at the end ofthe 3rd phrase of this particular chorale thecomposer ‘has not spotted the consecutives’between tenor and soprano, while at the endof the 6th and final phrase of the sameExample 8. BWV 48 (139), mm. 10-11Bach has harmonized the same melody threemore times (EMB nos 140, 141, and 142) andhad easily avoided those fifths. However, weare inclined to think that, even in the case ofBWV 48 the parallel fifths do not function asreal consecutives because they appear withina prolonged tonic triad –as it happens in BWV301. The chords that do have a structuralharmonic function in the last two bars are thetonic on the downbeat of m. 10, thepredominant and the dominant on the secondhalf of that measure and the final tonic (m.11), as the following middle-ground graphshows:6

CIM08 - Conference on Interdisciplinary Musicology - ProceedingsExample 9. BWV 48 (139), mm. 10-11: Middle-groundgraphExample 10. BWV 86, mm. 9-10Observing the way in which Bach has formedthe lines of the four voices, those fifths seemto be unavoidable. The soprano melody singsin a rather low register and towards the endof the chorale descends to its lower limits(C#4). This fact forces the alto to also remainin its low register in order to move, incontrary motion with the soprano, toward thesame C# on the downbeat of m. 10. Theresult is that the tenor crosses above the altofor a while (beats 2, 3, and 4 of m. 9).However, the tenor must return to its own(low) register on the downbeat of m. 10, andso he does in a hasty manner through adownward arpeggio which causes theformation of the parallel fifths. There areother compositional choices that could easilyavoid parallel fifths at this point and Bach hasproven it by harmonizing the same (althoughslightly more elaborate) chorale melody fourmore times –see EMB nos 87, 89, 90, and91; in some of these chorales voice crossingsare also necessary (for example, betweensoprano and alto or even between tenor andbass) but no parallel fifths are formed.The initial tonic triad persists throughout thefirst two beats of m. 10 and the IV6 that isheard on the second beat of the samemeasure is a contrapuntal formation, createdby the voice-leading and not by any kind ofharmonic necessity. Indeed, during the firsttwo beats of m. 10 the three upper voicessing either neighbor or passing notes to thenotes of the G minor triad, while the bassdescends in a stepwise motion from the tonicroot G3 to the C3 of the predominant seventhchord. Therefore, the consecutives which areformed because of the (supposed) I – IV6succession do not really convey theimpression that parallel fifths between twoharmonic (and not contrapuntal) triads mayconvey.The case of BWV 99 (340) resembles the oneof BWV 48. The parallel fifths are now formedbetween tenor and soprano at the beginningof the cadential idea that closes thepenultimate phrase of the chorale. Here, arather unnecessary neighbor note in thesoprano causes the formation of thesuccessive fifths A-E / B-F#. As in BWV 48, the soprano sings an embellished 3 – 2 – 1succession (in D Major), the alto movestoward the typical leading-tone suspension,while the bass descends, as in BWV 48, from 1 to 4. Again, the consecutives are notformed between two harmonic chords and,thus, may not be perceived as real parallelfifths.In BWV 248.33 (334) the parallel fifthsappear at the beginning of m. 2 between thetwo female voices: E-B / F-C.In BWV 86 (88) the fifths appear againtoward the end of the chorale, between thetenor and the soprano: B-F# / F#-C#.Example 11. BWV 248.33 (334), first phraseThis is the second example of parallel-fifthsformation mentioned by Malcolm Boyd, whoassumes that “Bach has not spotted theconsecutives and would have corrected them7

CIM08 - Conference on Interdisciplinary Musicology - Proceedingsif he had”. On the contrary, we are inclined toargue that Bach may have noticed theparallel fifths but did not really care for theirbeing there. In other words, he may haveconsidered that they do not really create akind of significant problem, and that they donot really function as parallel fifths since theyappear within the prolongation of the sameharmonic function –this time, within thepredominant function of the cadential patternwhich leads the first phrase to its close.Example 12. BWV 323 (238)What one perceives on a local level in thefirst two beats of m. 2 is a VI – IV6succession in C (Major-minor). However, bothof these chord formations belong to one, andonly one, harmonic function: the predominantfunction which is already (and ratherinescapably) on its way to the followingdominant –observe the chromatic movementA-A that ‘pushes’ the bass line toward G–that will eventually lead to the final tonic ofthe first phrase, C Major. Arguably, only onetriad is really heard (and functions) in thefirst half of m. 2, a IV6 of C (Major-minor), ifone perceives the E4 of the alto as a passingnote between D4 and F4, a passing note thathas been rhythmically shifted: instead ofappearing as an eighth-note, grouped with D4at the last beat of m. 1, becomes a quarternote on the downbeat of m. 2. Thus, it maybe argued that this kind of rhythmical shiftcreates an illusion of a submediant triad inroot position that is followed by asubdominant in first inversion. In any case,appearing in such a context, the successiveperfect fifths do not at all convey a feeling ofstillness that would impede the forwardthrust created by the longing of thepredominant to lead to the dominantfunction.Already since 1558, Gioseffo Zarlino hasnoticed that there were two kinds of modesused in the Catholic liturgical practice: the socalled ‘varied modes’ in which one could sing“antiphons, responsories, introits, graduals,and other similar things”, and the ‘stablemodes’, in which one sings “the Psalms ofDavid and the New Testament canticles”.xiiiThere were 8 such stable modes, known aspsalm tones; these psalm tones correspondedto the 8 medieval modes, one by one, butthey were not to be identified with them.Unlike the 8 known modes, the 8 psalm toneswere, in fact, completely predetermined,fixed melodies, structured as inflectedmonotones (recitatives) which move aroundone reciting note –different for each psalmtone– called tenor or tuba, and with alsofixed melodic formulas for the beginning(intonatio), the middle (mediatio), and theend (differentia, terminatio).Apart from those specific 8 psalm tones,there was one more, a 9th psalm tone calledtonus peregrinus, probably of Jewish origin,the binary form of which is structured aroundtwo (and not only one) different tenors. Themelody of BWV 323 is attributed to Luther(1529) but originates from the formulaicmelodic patterns that characterize this 9thpsalm tone of the ecclesiastical tradition –note the two tenors that are persistentlyrepeated in the two phrases: C#5 for the firstphrase and B4 for the second. It seems ratherunlikely that Bach “had not spotted theconsecutives” in this case since it is very easyfor someone to see (and hear) them at once.The reason of their being there, however,could be that, after the insistent repetition ofthe tenor (tuba) of the second phrase, B4, aslight pause could be introduced in order toFinally, parallel fifths appear in m. 8 of BWV323 (238) between tenor and soprano: E-B /B-F#. The melody of this particular choralehas a special history; a brief reference to theset of fixed tunes known as psalm tones isneeded here.8

CIM08 - Conference on Interdisciplinary Musicology - Proceedingsseparate the E Major triad on the downbeatof m. 8 from the B minor triad (in firstinversion) that supports the beginning of thefinal melodic gesture, the differentia of thetonus peregrinus.musical procedures, occasionally allowing theformation of parallel fifths which come to beconsidered as a musical feature of secondarystructural importance.ReferencesEpilogueBoyd, M. (1967). Harmonizing Bach Chorales.London: Barrie and Jenkins.Brahms, J. (1980). “Octaven u. Quinten”, withSchenker’s commentary, transl. Paul Mast.Music Forum V, 1-196.Huron, D. (1997). “Humdrum and Kern: Selectiv

melodies Johann Sebastian Bach usually “went to considerable pains to avoid consecutives”, as Malcolm Boyd argues.iii Given that some successions of this kind do exist in the Bach chorales, though, the goal of our project was to account for all cases of consecutives formed in the chorales

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