← B♭ Altered on Trombone (tenor clef)
B♭ 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°Bb dim
Degree 2 · iiCbm
Degree 3 · iiiDbm
Degree 4 · IV+Ebb aug
Degree 5 · VFb
Degree 6 · VIGb
Degree 7 · vii°Ab dim