♪
Nocturne
Scales
Chords
Practice
Ear
MIDI
← All chords
Chord
A
dim7
Diminished 7th
▶ Play chord
Arpeggio
A
C
D#
F#
Notes
A
C
D#
F#
Intervals
0
— Unison
3
— Minor 3rd
6
— Tritone
9
— Major 6th
Formula
R +3 +6 +9
Category: seventh