This page is an alphabetized index of articles about music.
A cappella – Absolute pitch – Accidental – Accompaniment – Ad libitum – Adagio – Added tone chord – Additive rhythm – Album – Aleatoric music – Allegro – Alto – Ambiguity – American Music Awards – Antiphon – Arrangement – Articulation – Aspects of music – Atonality – Audio mixing – Auditory illusion – Authentic performance – Augmentation – Augmented chord
BACH motif – Back beat – Ballet – Band (music) – Bar (music) – Baroque music – Bass – Bass run – Bassline – Basso – Basso continuo – Beat (music) – Beatmatching – Bel canto – Binary form – Blue note – Blues – Blues ballad – Bohlen–Pierce scale – Boogie woogie – Braille music – Break (music) – Bridge (music) – British opera