The Érard, Pleyel & Gaveau archive collection was donated to the Museum of Music in 2009.
It hails from Érard, Pleyel and Gaveau, three emblematic French musical instrument making institutions. It has been representing a unified whole since their fusion in the middle of the 20th century:
- 1. Gaveau and Érard in 1959
- 2. Gaveau-Érard and Pleyel in 1961
It also contains documents on Bord, Herrburger Brooks Ltd and Cavaillé-Coll, commercial dealings firms bought or merged with Pleyel.
Note: Other archives from Érard (registers, correspondence) are conserved at the Palais Lascaris in Nice and at the Royal College of Music in London (books of harp sales by Érard in London).