| [anonymous] | Other | Not applicable | [Worldwide] | 5 | instrument |
| [unknown] | Other | Not applicable | [Worldwide] | 4.2 | instrument |
| 12-B. | Person | | | | instrument |
| Claudio Abbado | Person | Male | Italy | 4.5 | instrument |
| Anthony Abouhamad | Person | Male | | | instrument |
| Leo Abrahams | Person | Male | United Kingdom | | instrument (as “spinet”) |
| Robert Abramson | Person | Male | United States | | instrument |
| Robert Abramson | Person | Male | | | instrument |
| Anastasia Abu Bakar | Person | | | | member of band |
| Luigi Accardo | Person | Male | | | instrument |
| Erzsébet Áchim | Person | Female | | | instrument |
| Shalev Ad-El | Person | Male | Israel | | instrument |
| Petr Adamec | Person | Male | | | instrument |
| Elena Adamovich | Person | Female | Russia | | instrument |
| David Adams | Person | Male | Ireland | | instrument, member of band |
| Terry Adams | Person | Male | United States | | instrument |
| Jonathan Addleman | Person | Male | | | instrument technician |
| Thomas Adès | Person | Male | United Kingdom | 5 | instrument |
| Didier Adeux | Person | Male | | | instrument, member of band |
| Mervyn Africa | Person | Male | United Kingdom | | instrument |
| Serena Agostini | Person | Female | Italy | | instrument |
| Frank Agsteribbe | Person | Male | Belgium | | instrument |
| Isolde Ahlgrimm | Person | Female | Austria | | instrument |
| Priscilla Ahn | Person | Female | United States | 4.5 | instrument |
| Takahisa Aida | Person | Male | | | instrument |
| Naoko Akutagawa | Person | Female | Japan | | instrument |
| Benjamin Alard | Person | Male | France | | instrument (as “pedal harpsichord”), instrument |
| Elina Albach | Person | Female | | | instrument |
| Damon Albarn | Person | Male | United Kingdom | 5 | instrument |
| Robert Aldwinckle | Person | Male | United Kingdom | | instrument, member of band |
| Alfonso Sebastián Alegre | Person | Male | Spain | | instrument, teacher |
| Alem | Person | Male | | | instrument |
| Rinaldo Alessandrini | Person | Male | Italy | 5 | instrument (as “Clavecin Kes Bom, 1985”), instrument (as “cembalo”), instrument (as “clavecin Franciscus Debbonis, Roma 1678”), instrument |
| Susan Alexander-Max | Person | Female | United Kingdom | | instrument |
| Gwennaëlle Alibert | Person | Female | France | | member of band |
| Stefano Allegretti | Person | Male | | | instrument |
| John Alley | Person | Male | United Kingdom | | instrument |
| Bengt Almfjord | Person | | | | instrument |
| Raphael Alpermann | Person | Male | Germany | | instrument (as “Cembalo”), instrument (as “harpsichord II”), instrument, member of band, teacher |
| Ron Altbach | Person | Male | United States | | instrument |
| Laura Alvini | Person | Female | Italy | | instrument |
| Gerd Amelung | Person | Male | | | instrument |
| Richard Amner | Person | | | | instrument |
| Tori Amos | Person | Female | United States | 4.4 | instrument (as “harpsichord through Marshall”), instrument |
| Douglas Amrine | | | | | instrument |
| Elizabeth Anderson | Person | Female | Australia | | instrument |
| Ronald Kinloch Anderson | Person | Male | United Kingdom | | instrument |
| Andreas Slavik | Person | Male | Austria | | instrument |
| Andreina Di Girolamo | Person | Female | | | instrument |
| Julius Andrejevas | Person | Male | Lithuania | | instrument, member of band |
| Nicole Andrews | Person | Female | | | instrument |
| Angela Lazzaroni | Person | Female | | | instrument (as “clavicembalo”) |
| Jean‐Henri d’Anglebert | Person | Male | France | 5 | instrument arranger |
| Catherine Anne Davies | Person | Female | United Kingdom | | instrument |
| Eddy Antonini | Person | | Italy | | instrument |
| Andrew Appel | Person | Male | United States | | instrument |
| Yoma Appenheimer | Person | | | | instrument |
| Aqualung | Person | Male | United Kingdom | 5 | instrument |
| 新居昭乃 | Person | Female | Japan | 4 | instrument (as “cembalo”), instrument |
| Emmanuel Arakélian | Person | Male | | | instrument |
| Ben Araki | Person | | | | instrument |
| Beni Araki | Person | Female | Berlin | | instrument |
| Dave Arch | Person | Male | United Kingdom | | instrument |
| Malcolm Archer | Person | Male | United Kingdom | | instrument |
| Diego Ares | Person | Male | Spain | | instrument |
| Rod Argent | Person | Male | United Kingdom | | instrument |
| Sumina Arihashi | Person | Female | | | instrument |
| Jean-Miguel Aristizabal | Person | Male | France | | member of band |
| 有田千代子 | Person | Female | Japan | | instrument |
| Árni Heimir Ingólfsson | Person | Male | Iceland | | instrument |
| David Aronson | Person | Male | | | instrument |
| Andrew Arthur | Person | Male | United Kingdom | | instrument |
| Alessandra Artifoni | Person | Female | Italy | | instrument |
| Arved Ashby | Person | Male | United States | 5 | instrument |
| Bob van Asperen | Person | Male | Netherlands | 4 | instrument (as “Anonymous French harpsichord, 17th century”), instrument (as “Cembalo”), instrument (as “Italian Harpsichord "F.A. 1677" (Collection Kenneth Gilbert)”), instrument (as “Italian harpsichord "F. A. 1677"”), instrument (as “Original Labrèche harpsichord, c. 1680”), instrument (as “Original Ruckers harpsichord (1640, Velen/Westphalia)”), instrument (as “Original french harpsichord, anonymous, c.1700”), instrument (as “Vaudry, 1681”), instrument (as “anonymous French harpsichord, c. 1700”), instrument, teacher |
| Mats Asplén | Person | Male | Sweden | | instrument |
| Pierre‐Yves Asselin | Person | Male | Canada | | instrument technician |
| Rosalie Asselin | Person | Female | | | instrument, member of band |
| Claudio Astronio | Person | Male | Italy | | conductor, instrument |
| Carole Aubert | Person | | | | instrument |
| Brian Auger | Person | Male | United Kingdom | 5 | instrument |
| Christine Auger | Person | Female | | | instrument |
| Odile Aurengo | Person | Female | | | instrument |
| Emilie Autumn | Person | Female | United States | 3.75 | instrument |
| Valda Aveling | Person | Female | Australia | | instrument (as “Cembalo concertato”), instrument (as “continuo”), instrument (as “harpsichord continuo”), instrument |
| Silke Avenhaus | Person | Female | Germany | | instrument |
| Jean-Marc Aymes | Person | Male | France | | instrument (as “clavecin”), instrument, teacher |
| Luis Bacalov | Person | Male | Argentina | | instrument (as “cembalo”), instrument (as “cimbalo”), instrument (as “spinetta”) |
| Francesca Bacchetta | Person | Female | | | instrument |
| Gottfried Bach | Person | Male | Germany | | instrument (as “Continuo”), instrument |
| Johann Sebastian Bach | Person | Male | Germany | 4.9 | instrument arranger |
| Antonio Baciero | Person | Male | Spain | | instrument |
| Roland Bader | Person | Male | Germany | | conductor, instrument |
| John Baggott | Person | Male | United Kingdom | | instrument |
| Enrico Baiano | Person | Male | Italy | | instrument (as “by Gianfranco Facchini, after an anonymous Italian harpsichord of the 17th century”), instrument |
| Julien Bailly | Person | | | | instrument technician |
| Barbara Baird | Person | Female | | | instrument |
| Miles Dimitri Baker | Person | Male | United States | | instrument |
| Maria Luisa Baldassari | Person | Female | Italy | | instrument |
| Maria Luisa Baldassarri | Person | Female | | | member of band |