D and D7, the corresponding chord phonemes are #FAD and #FCD respectively.
D, A, bG(#F) are all major triad, and subscripts such as Fm, Gm, Bm, #Fm, Cm and #Cm are all minor chords.
Major triad has three constituent sounds, namely root sound, trisyllabic sound and pentatonic sound, and their relationship is major third degree+minor third degree;
A minor chord has three constituent sounds, namely, root, trisyllabic and pentatonic, and their relationship is three plus three.
Extended data:
Standard sound method:
The constituent sounds of D chord are D (root sound), #F (triple sound) and A (pentatonic sound);
The constituent sounds of chord A are A, #C and E;
The compound sounds of bG(#F) chord are bG, bB and D.
Fm(F，bA，C ), Gm(G，bB，D ), Bm(B，D ,# F ),# Fm(# F，A ,# C ), Cm(C，bE，G ),# Cm(# C，E ,# G).
This key scaling method:
Major triad in the key of c has the first chord C( 135), the fourth chord F(46 1) and the fifth chord G (572). The minor chord consists of the sixth chord Am(6 13), the second chord Dm(246) and the third chord Em(357).
Major triad in D has the first chord D( 135), the fourth chord G(46 1) and the fifth chord A (572). The minor chord consists of the sixth chord and Bm(6 13), the second chord Em(246) and the third chord #Fm(357).
Major triad in the key of e has the first chord E( 135), the fourth chord A(46 1) and the fifth chord B (572). There are six chords and #Cm(6 13), two chords #Fm(246) and three chords #Gm(357).
Major triad in F major has the first chord F( 135), the fourth chord b724 and the fifth chord C (135). The minor chord has the sixth chord Dm.
(246), the second chord Dm(246) and the third chord A(6 13).
Baidu Encyclopedia -D7 Chord