A♭ Altered — Triads
Three-note stacks of thirds, one per scale degree. The chord-quality pattern below is the Altered scale's diatonic harmony.
All 7 triads in sequence
Degree 1 · i°Ab dim
Degree 2 · iiBbbm
Degree 3 · iiiCbm
Degree 4 · IV+Dbb aug
Degree 5 · VEbb
Degree 6 · VIFb
Degree 7 · vii°Gb dim