Assertion: augmented sixth chord | /r/HasProperty | c–e–g♯–b♭
Facets:
Source sentences:
text: An altered seventh chord is a seventh chord with one, or all, of its factors raised or lowered by a semitone (altered), for example, the augmented seventh chord (7+ or 7+5) featuring a raised fifth (C7+5: C–E–G♯–B♭).