Diminished 7th arpeggio
Four notes all a minor 3rd apart — maximum tension, repeating every three semitones.
A, crotchet; C, crotchet; E flat, crotchet; G flat, crotchet; A, crotchet
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A C E♭ G♭
Four notes all a minor 3rd apart — maximum tension, repeating every three semitones.
A, crotchet; C, crotchet; E flat, crotchet; G flat, crotchet; A, crotchet
A C E♭ G♭