1.6 - Les accords de 3 sons



Cours d'harmonie - 1.6 - Les accords de 3 sons

A partir d'un exemple : début du mouvement lent de la IVe symphonie de Tchaïkovski, cette vidéo décrit l'accord de trois sons dans la réalité musicale. Suivent cette description détaillée, le cours proprement dit sur l'accord de trois sons : définition, présentation des différents accords de ce type (parfaits majeur et mineur, de quinte diminuée et de quinte augmentée). Enfin, pour clore le cours, nous faisons un panorama détaillé des différents accords parfaits majeurs. Sur l'ensemble de l'unité, il n'est fait mention que de l'accord dans son état fondamental.

Q:1/4=40 L:1/4 %%MIDI program 40 V:S clef=treble %%MIDI program 41 V:A clef=treble %%MIDI program 42 V:T clef=C %%MIDI program 43 V:B clef=bass %%staves [S A T B] K:Bbm [V:S] z | F/ z/ z | !red!=A/ z/ z | G/ z/ G/ z/ | F/ |] [V:A] z | D/ z/ z | F/ z/ z | D/ z/ E/ z/ | C/ |] [V:T] z | B,/ z/ z | C/ z/ z | B,/ z/ B,/ z/ | !red!=A,/ |] [V:B] z | B,/ z/ z | F,/ z/ z | G,/ z/ E,/ z/ | F,/ |]
Q:1/1=40 %%piano3+1 K:Bbm [V:S] F !red!=A G G F |] [V:A] D F D E C |] [V:T] B, C B, B, !red!=A, |] [V:B] B, F, G, E, F, |]

Les accords parfaits

Q:1/1=40 "tierce""majeure"[E^G] "quinte""juste"[EB] "accord""parfait""majeur"[E^GB]|]

Accord parfait majeur :

Accord parfait mineur :

Les 3 sons qui forment l'accord parfait majeur sont issus de la résonnance naturelle.

Q:1/1=40 "accord""parfait""majeur"[CEG] | "accord""parfait""mineur"[C_EG]
Q:1/1=40 "accord de""quinte""augmentée"[CE^G] || "accord""parfait""majeur"[CEG] | "accord""parfait""mineur"[C_EG] || "accord de""quinte""diminuée"[C_E_G]

Au piano, il n'existe que 3 accords parfaits majeurs sur les notes naturelles (les touches blanches) :

Q:1/1=40 "Do"[CEG] | "Fa"[FAc] | "Sol"[GBd]
Q:1/1=40 "Ré"[D^FA] | "Mi"[E^GB] | "La"[A^ce]
Q:1/1=40 "Réb"[_DF_A] | "Mib"[_EG_B] | "Lab"[_Ac_e]
Q:1/1=40 "Si"[B,^D^F] | "Sib"[_B,DF] | "Fa#"[^F^A^c] "Solb"[_G_B_d]

Les 12 accords parfaits majeurs à 3 sons

Accords composés par une fondamentale, une tierce majeure (M3) et une quinte juste (P5).

Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "do"x "mi"x "sol"x || "C"x |] [V:1] !blue!C [C!blue!E] [C!blue!G] || [CEG] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "fa"x "la"x "do"x || "F"x |] [V:1] !blue!F [F!blue!A] [F!blue!c] || [FAc] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "sol"x "si"x "ré"x || "G"x |] [V:1] !blue!G [G!blue!B] [G!blue!d] || [GBd] |] w: Fond. M3 P5 Majeur
2


Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "ré"x "fa#"x "la"x || "D"x |] [V:1] !blue!D [D!blue!^F] [D!blue!A] || [D^FA] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "mi"x "sol#"x "si"x || "E"x |] [V:1] !blue!E [E!blue!^G] [E!blue!B] || [E^GB] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "la"x "do#"x "mi"x || "A"x |] [V:1] !blue!A [A!blue!^c] [A!blue!e] || [A^ce] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "réb"x "fa"x "lab"x || "Db"x |] [V:1] !blue!_D [_D!blue!F] [_D!blue!_A] || [_DF_A] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "do#"x "mi#"x "sol#"x || "C#"x |] [V:1] !blue!^C [^C!blue!^E] [^C!blue!^G] || [^C^E^G] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "mib"x "sol"x "sib"x || "Eb"x |] [V:1] !blue!_E [_E!blue!G] [_E!blue!_B] || [_EG_B] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "lab"x "do"x "mib"x || "Ab"x |] [V:1] !blue!_A [_A!blue!c] [_A!blue!_e] || [_Ac_e] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "si"x "ré#"x "fa#"x || "B"x |] [V:1] !blue!B [B!blue!^d] [B!blue!^f] || [B^d^f] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "dob"x "mib"x "solb"x || "Cb"x |] [V:1] !blue!_C [_C!blue!_E] [_C!blue!_G] || [_C_E_G] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "sib"x "ré"x "fa"x || "Bb"x |] [V:1] !blue!_B [_B!blue!d] [_B!blue!f] || [_Bdf] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "fa#"x "la#"x "do#"x || "F#"x |] [V:1] !blue!^F [^F!blue!^A] [^F!blue!^c] || [^F^A^c] |] w: Fond. M3 P5 Majeur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "solb"x "sib"x "réb"x || "Gb"x |] [V:1] !blue!_G [_G!blue!_B] [_G!blue!_d] || [_G_B_d] |] w: Fond. M3 P5 Majeur
2

Les 12 accords parfaits mineurs à 3 sons

Accords composés par une fondamentale, une tierce mineure (m3) et une quinte juste (P5).

Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "do"x "mib"x "sol"x || "Cm"x |] [V:1] !blue!C [C!blue!_E] [C!blue!G] || [C_EG] |] w: Fond. m3 P5 Mineur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "fa"x "lab"x "do"x || "Fm"x |] [V:1] !blue!F [F!blue!_A] [F!blue!c] || [F_Ac] |] w: Fond. m3 P5 Mineur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "sol"x "sib"x "ré"x || "Gm"x |] [V:1] !blue!G [G!blue!_B] [G!blue!d] || [G_Bd] |] w: Fond. m3 P5 Mineur
2


Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "do#"x "mi"x "sol#"x || "C#m"x |] [V:1] !blue!^C [^C!blue!E] [^C!blue!^G] || [^CE^G] |] w: Fond. m3 P5 Mineur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "fa#"x "la"x "do#"x || "F#m"x |] [V:1] !blue!^F [^F!blue!A] [^F!blue!^c] || [^FA^c] |] w: Fond. m3 P5 Mineur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "sol#"x "si"x "ré#"x || "G#m"x |] [V:1] !blue!^G [^G!blue!B] [^G!blue!^d] || [^GB^d] |] w: Fond. m3 P5 Mineur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "lab"x "dob"x "mib"x || "Abm"x |] [V:1] !blue!_A [_A!blue!_c] [_A!blue!_e] || [_A_c_e] |] w: Fond. m3 P5 Mineur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "ré"x "fa"x "la"x || "Dm"x |] [V:1] !blue!D [D!blue!F] [D!blue!A] || [DFA] |] w: Fond. m3 P5 Mineur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "mi"x "sol"x "si"x || "Em"x |] [V:1] !blue!E [E!blue!G] [E!blue!B] || [EGB] |] w: Fond. m3 P5 Mineur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "la"x "do"x "mi"x || "Am"x |] [V:1] !blue!A [A!blue!c] [A!blue!e] || [Ace] |] w: Fond. m3 P5 Mineur
2


Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "mib"x "solb"x "sib"x || "Ebm"x |] [V:1] !blue!_E [_E!blue!_G] [_E!blue!_B] || [_E_G_B] |] w: Fond. m3 P5 Mineur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "ré#"x "fa#"x "la#"x || "D#m"x |] [V:1] !blue!^D [^D!blue!^F] [^D!blue!^A] || [^D^F^A] |] w: Fond. m3 P5 Mineur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "si"x "ré"x "fa#"x || "Bm"x |] [V:1] !blue!B [B!blue!d] [B!blue!^f] || [Bd^f] |] w: Fond. m3 P5 Mineur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "sib"x "réb"x "fa"x || "Bbm"x |] [V:1] !blue!_B [_B!blue!_d] [_B!blue!f] || [_B_df] |] w: Fond. m3 P5 Mineur
2
Q:1/1=60 V:C clef=treble V:1 clef=treble %%score (C 1) [V:C] "la#"x "do#"x "mi#"x || "A#m"x |] [V:1] !blue!^A [^A!blue!^c] [^A!blue!^e] || [^A^c^e] |] w: Fond. m3 P5 Mineur
2

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