| Keyword | Excerpt (click on keyword for complete article) |
| 3 Pyramids | String brand selling oud strings. |
| A. Bord | Piano manufacturer in Paris. |
| A. di Mauro | Guitar manufacturer in Paris |
| A. Dieudonne fils | See Dieudonné, Amédée Dominique. |
| A. G. Badger | See Badger, Alfred G. |
| A. Monzino & Garlandini | Instrument manufacturer in Milan. |
| A. O. & E. C. Howe | Instrument store and manufacturer located in Chicago. |
| A. R. Jollie | See Jollie, Allen R. |
| A. Rampone & B. Cazzani | See Rampone & Cazzani. |
| A. Richter | See Richter, Anton. |
| A. Rosati | Accordion brand. |
| A. Stathopoulo | Short for Anastasios Stathopoulo. The original name of the Epiphone company. |
| AB Albin Hagström | Instrument manufacturer and distributor in Älvdalen, founded by Albin Hagström. |
| AB. Nordiska Musikaffären | Musical instruments distirbutor in Göteborg. |
| Abbati, Giambattista | Violin maker in Modena.Henri Poidras says: "ABBATI (Giambattista) ‹ Modena circa 1780. Workmanship of no great artistic value. Brown varnish. His 'cellos possess an excellent tone." |
| Abilene | |
| Acevo | Violin maker, said to have been a student of Giofredus Cappa.According to Hart, Acevo worked in Cremona made violins in the Amati tradition but of rather poor quality. Poidras on the other hand, place |
| Achá, Juan | Bolivian luthier located in La Paz. |
| Achner, Joseph | Violin maker in Mittenwald.Joseph Achner built Stainer style violins as well as instruments based on the Cremonese school . |
| Achner, Michael | Violin maker in Walgau. |
