| Ah leve toi soleil | — | Charles Gounod |
| Ah se in ciel, benigne stelle | K. 538 | Wolfgang Amadeus Mozart |
| Ah, lo previdi! Ah t'invola - Deh, non varcar | KV 272 | Wolfgang Amadeus Mozart |
| Ah, perfido | Op. 65 | Ludwig van Beethoven |
| Aida: prelude | — | Giuseppe Verdi |
| Aida: triumphal march & ballet | — | Giuseppe Verdi |
| Air and Dance | — | Frederick Delius |
| Air and gavotte | — | Arthur Foote |
| Air Tyrolien from "La Vie Parisienne" | — | Jacques Offenbach |
| Airborne Suite: Afternoon in Montreal | — | Paul Creston |
| Airborne Suite: Night in Mexico | — | Paul Creston |
| Airs de ballet, suite no. 2 | — | Christoph Willibald Gluck |
| Akhmatova: requiem | — | John Tavener |
| Akrata | — | Yannis Xenakis |
| Alabama Song | — | Kurt Weill |
| Aladdin: 7 Pieces | Op. 34 | Carl Nielsen |
| Albada, interludi i dansa | — | Roberto Gerhard |
| Alborada del gracioso | — | Maurice Ravel |
| Alcandro | KV 294 | Wolfgang Amadeus Mozart |
| Alcandro | K. 512 | Wolfgang Amadeus Mozart |
| Alceste (paris version of 1776): overture | — | Christoph Willibald Gluck |
| Alceste: instrumental pieces | HWV 45 | Georg Friedrich Händel |
| Alceste: overture | — | Christoph Willibald Gluck |
| Alcina: overture | HWV 34 | Georg Friedrich Händel |
| Alea für Streichorchester | — | Wolfgang Suppan |
