✔ 最佳答案
dominant seventh chord is formed by the note intervals of
a tonic triad(dms/str') minor 3rd;
that is major 3rd+ minor 3rd +minor 3rd
eg.GBDF,
G#BD#F#,
CEGBb,
DF#AC,
DbFAbCb,
EG#BD,
EbGBbDb,
FACEb,
F#AC#E,
AC#EG,
BD#F#A,
BbDFAb
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diminished seventh chord is a chord that formed by minor 3rd of notes,
that is minor 3rd +minor 3rd +minor 3rd
eg. CEbGbBbb,
DbEGBb,
DFAbCb,
EbGbBbbDb,
EGBbDb,
FAbCbEbb,
F#ACEb,
GBbDbFb,
AbCbEbbGbb(AbBDF),
ACEbGb,
BbDbFbAbb(BbDbEG),
BDFAb
**minor is an interval of 3 semitones, for example C=>Eb,G=>Bb,B=>D etc.**
2008-04-07 01:00:16 補充:
**minor 3rd is an interval of 3 semitones, for example C=>Eb,G=>Bb,B=>D etc.**
**major 3rd is an interval of 4 semitones, for example C=>E,G=>B,B=>D# etc.**