Major Seventh	AM7 [A-C♯-E-G♯]
Dominant Seventh	A7 [A-C♯-E-G]
minor Seventh	Am7 [A-C-E-G]
half-diminished Seventh	AØ7 or A7♭5 [A-C-E♭-G]
fully-diminished Seventh	AO7 [A-C-E♭-G♭]
diminished Major Seventh	AOM7 [A-C-E♭-G♯]
minor-Major Seventh	AmM7 [A-C-E-G♯]
Augmented Seventh or Dominant 7♯5	A+7 or A7♯5 [A-C♯-E♯-G]
Augmented-Major Seventh	A+M7 or AM7♯5 [A-C♯-E♯-G♯]