Gipuzkoan musician. Born in Tolosa on May 18, 1885, he died in Getxo on April 1, 1943.
A disciple of Gorriti and Mocoroa , he was also organist of the Sestao parish church and director of the Trabajo y Cultura choir and the Portugalete Choral Society (1906-1907). His involvement in the choral world is also reflected in the founding of the Biotz-Alai Choir [of Getxo?] in 1926. He also composed works for band and txistu, and was also the author of various harmonies. Several of his compositions and harmonies have been published in the magazine Txistulari.
- BAGÜÉS, J.: Gainza, Manuel. En Casares, E. (dir.), Diccionario de la Música Española e Hispanoamericana (v. 5, p. 304). [Madrid]: Sociedad General de Autores y Editores, 1999.
- ERESBIL: Sección documental, D1/GAI-05. Manuel Gainza y Plazaola, carta enviada por Juan José Gainza, 27-11-2003.
- ERESBIL: Partituras de música vasca: catálogo. Consulta en Eresbil.