Aristide Cavaillé-Coll

Aristide Cavaillé-Coll (4 February 1811 – 13 October 1899) was a French organ builder. He has the reputation of being the most distinguished organ builder of the 19th century. He pioneered innovations in the art and science of organ building that permeated the profession and influenced the course of organ building, composing and improvising through the early 20th century.