D 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°D dim
Degree 2 · iiEbm
Degree 3 · iiiFm
Degree 4 · IV+Gb aug
Degree 5 · VAb
Degree 6 · VIBb
Degree 7 · vii°C dim