2.4 - Les enchaînements
avec accord de sixte
Cette 4ème unité du 2ème chapitre est consacrée aux enchaînements avec les accords de sixte. On y trouve :
- les enchaînements usuels dominante-tonique avec les accords de 6te ;
- à 09:30 la notion d'échange ;
- à 17:00 l'introduction de la 7ème, donc les accords de 6te-5te diminuée et de quarte sensible ;
- à 21:00 les sixtes consécutives ;
- à 30:45 l'accord de 6te du IIème degré dans les sections cadentielles ;
- à 36:15 la 6te napolitaine.
Exemplification avec le début du deuxième mouvement de la sonate opus 13 de Beethoven, dite "sonate pathétique".
Q:1/1=40
%%piano3+1CN
%%player_no_voice
K:C
[V:C] "(a)""G"x "C/E"x | "(b)""G"x "C/E"x | "(c)""G"x "C/E"x |]
[V:S] !red!!r>(!B !blue!!r>)!c | d !blue!g | !blue!!n>(!G !blue!!n>)!c |]
[V:A] !n>(!!blue!G !n>)!G | !red!!r>(!B !r>)!c | D G |]
[V:T] D !blue!C | !n>(!!blue!G !n>)!!blue!G | !red!!r>(!B, !blue!!r>)!C |]
[V:B] !blue!G, E, | !blue!G, E, | !blue!G, E, |]
[V:N] x "_6"x | x "_6"x | x "_6"x |]
(b) réalisation avec une doublure de tierce, et une dixième entre la basse et le ténor.
Point sur les échanges
Q:1/1=40
%%piano2+2C
%%player_no_voice
K:C
[V:C] "C"x | "F"x || "C/E"x | "F"x || "C/E"x | "C/E"x |]
[V:S] !blue!c | A || !blue!c | A || !blue!c | !blue!c/ e/ |]
[V:A] G | !blue!F || G | !blue!F || G | G |]
[V:T] !g>(!E/ !n>)!C/ | C || !blue!C | C || !blue!C/ E/ | !blue!C |]
[V:B] !blue!!n>(!C,/ !g>)!E,/ | !blue!F, || E, | !blue!F, || E,/ C,/ | E,/ C,/ |]
Introduction de la septième
Q:1/1=40
%%piano3+1C
K:C
[V:C] "C"x/ "C7"x/ | "F"x ||
[V:S] !blue!c/!orange!!o>(!_B/ | !o>)!A ||
[V:A] G | !blue!F ||
[V:T] E/!n>(!C/ | !n>)!C ||
[V:B] !blue!C,/!red!!r>(!E,/ | !blue!!r>)!F, ||
Q:1/1=40
%%piano2+2CDN
%%player_no_voice
K:C
[V:C] "F/A"x | "C"x || "G/B"x | "C"x || "F/A"x | "G/B"x | "C"x ||
[V:D] "IV"x | "I"x || "V"x | "I"x || "IV"x | "V"x | "I"x ||
[V:S] !blue!F | E || !blue!G | E || !red!!r>(!F | !red!!r>)!G | E ||
[V:A] C | !blue!C || D | !blue!C || !red!!r>(!C | !red!!r>)!D | !blue!C ||
[V:T] !blue!F, | G, || !blue!G, | G, || !red!!r>(!F, | !red!!r>)!G, | G, ||
[V:B] A,, | !blue!C, || B,, | !blue!C, || A,, | B,, | !blue!C, ||
[V:N] "_6"x | "_5"x || "_6"x | "_5"x || "_6"x | "_6"x | "_5"x ||
Ici on a deux octaves consécutives et deux quintes consécutives. La solution pour éviter cela :
Q:1/1=40
%%piano2+2CDN
%%player_no_voice
K:C
[V:C] "F/A"x | "G/B"x | "C"x || "F/A"x | "G/B"x | "C"x ||
[V:D] "IV"x | "V"x | "I"x || "IV"x | "V"x | "I"x ||
[V:S] !blue!F | G | E || !red!!r>(!F | !red!!r>)!G | E ||
[V:A] C | !blue!D | !blue!C || !red!!r>(!C | !red!!r>)!D | !blue!C ||
[V:T] !blue!F, | !blue!D, | G, || !red!!r>(!F, | !red!!r>)!G, | G, ||
[V:B] A,, | B,, | !blue!C, || A,, | B,, | !blue!C, ||
[V:N] "_6"x | "_6"x | "_5"x || "_6"x | "_6"x | "_5"x ||
On ne double jamais la sensible.
L'accord du II avant cadence
Q:1/1=40
%%piano3+1CDN
[V:C] "F"x "G"x "C"x || "Dm/F"x "G"x "C"x |]
[V:D] "IV"x "V"x "I"x || "II"x "V"x "I"x |]
[V:S] c !red!!r>(!B !blue!!r>)!c || d !red!!r>(!B !blue!!r>)!c |]
[V:A] A !blue!G G || A !blue!G G |]
[V:T] !blue!F D E || !blue!F D E |]
[V:B] !blue!F, !blue!G, !blue!C, || !blue!F, !blue!G, !blue!C, |]
[V:N] "_5"x "_5"x "_5"x || "_6"x "_5"x "_5"x |]
L'accord de sixte de Dm double sa basse.
En majeur :
Q:1/1=40
%%piano3+1CDN
[V:C] "Dm/F"x "G"x "C"x |]
[V:D] "II"x "V"x "I"x |]
[V:S] d !red!!r>(!B !blue!!r>)!c |]
[V:A] A !blue!G G |]
[V:T] !blue!F D E |]
[V:B] !blue!F, !blue!G, !blue!C, |]
[V:N] "_6"x "_5"x "_5"x |]
En mineur :
Q:1/1=40
%%piano3+1CDN
[V:C] "D°/F"x "G"x "Cm"x |]
[V:D] "II"x "V"x "I"x |]
[V:S] d !red!!r>(!=B !blue!!r>)!c |]
[V:A] _A !blue!G G |]
[V:T] !blue!F D _E |]
[V:B] !blue!F, !blue!G, !blue!C, |]
[V:N] "_6""_♭"x "_♮"x "_5"x |]
Avec la sixte napolitaine :
Q:1/1=40
%%piano3+1CDN
[V:C] "Db/F"x "G"x "Cm"x |]
[V:D] "bII"x "V"x "I"x |]
[V:S] !green!_d !red!!r>(!=B !blue!!r>)!c |]
[V:A] _A !blue!G G |]
[V:T] !blue!F D _E |]
[V:B] !blue!F, !blue!G, !blue!C, |]
[V:N] "_♭6""_♭"x "_♮"x "_5"x |]
Application
Le début du deuxième mouvement de la sonate opus 13 de Beethoven :
L:1/8
M:2/4
Q:1/4=36
K:Ab
%%score {(S A) | B }
V:S clef=bass
V:A clef=bass
V:B clef=bass
[V:S] C2 B,2 | E3 D | CEAB | E3 =E |]
[V:A] !p!A,/E,/A,/E,/ G,/E,/G,/E,/ | A,/E,/A,/E,/ B,/E,/B,/E,/ | A,/E,/A,/E,/ C/A,/=D/A,/ | G,/B,/G,/B,/ G,/B,/G,/B,/ |]
[V:B] A,,2 D,2 | C,2 G,,2 | A,,G,,F,,F, | E,2 E,,2 |]
Transposition en Do majeur :
L:1/8
M:2/4
Q:1/4=36
K:C
%%score {(D C S A) | B }
V:C clef=bass
V:D clef=bass
V:S clef=bass
V:A clef=bass
V:B clef=bass
[V:C] "C"x2 "G/F"x2 | "C/E"x2 "G/V"x2 | "C"x2 "Am"x "F#°"x | "G"x4 |]
[V:D] "I"x2 "V/7"x2 | "I/3"x2 "V/3"x2 | "I"x2 "VI"x "V7/V"x | "V"x4 |]
[V:S] E2 D2 | G2- G !orange!F | EGcd | G2- G ^G |]
[V:A] C/G,/C/G,/ B,/G,/B,/G,/ | C/G,/C/G,/ D/G,/D/G,/ | C/G,/C/G,/ E/C/!green!^F/C/ | B,/D/B,/D/ B,/D/B,/D/ |]
[V:B] C,2 !orange!F,2 | E,2 !red!B,,2 | C,B,, A,,A, | G,2 G,,2 |]
Q:1/1=40
%%piano2+2CD
[V:C] "C"x | "G"x | "C/E"x | "G/B"x | "C"x |]
[V:D] "I"x | "V"x | "I/3"x | "V/3"x | "I"x |]
[V:S] E | D | !blue!G | !blue!G | E |]
[V:A] !blue!C | !red!!r>(!B, | !r>)!C | D | !blue!C |]
[V:T] G, | !blue!G, | !blue!G, | !blue!G, | G, |]
[V:B] !blue!C, | !blue!G, | "_6"E, | "_6"!red!!r>(!B,, | !r>)!!blue!C, |]
Q:1/1=40
%%piano2+2CD
[V:C] "C"x | "G/F"x | "C/E"x | "G/B"x | "C"x |]
[V:D] "I"x | "V7/7"x | "I/3"x | "V/3"x | "I"x |]
[V:S] E | D | !blue!G | !blue!G/ !orange!!o>(!F/ | !o>)!E |]
[V:A] !blue!C | !red!!r>(!B, | !r>)!C | D | !blue!C |]
[V:T] G, | G, | !blue!G, | !blue!G, | G, |]
[V:B] !blue!C, | !orange!!o>(!F, | !o>)!E, | !red!!r>(!B,, | !r>)!!blue!C, |]
