Overview
- Acher died on December 12 at age 86, according to Argentine media reports that did not specify a cause.
- He was a core member of Les Luthiers from 1971 to 1986, contributing compositions, multi-instrumental performances, and key pieces such as the Cantata del adelantado Don Rodrigo and La gallina dijo Eureka.
- Credited with helping shape the group's professional practices, he promoted collective work methods, stage amplification, and a recording partnership with the Trova label while aiding in the creation of unconventional instruments.
- After leaving the ensemble, he founded La Banda Elástica in 1988, toured regionally, released three albums, and later paired the group with the Camerata Bariloche for the Juntos en concierto program before the band dissolved in 1993.
- He lived in Chile from 2002 teaching at Universidad Diego Portales and directing university orchestras, returned to Buenos Aires in 2016, and continued projects including the radio series Los rincones de Acher, the Offside Chamber Orchestra, and Gershwin tributes as peers such as Roberto Antier offered public remembrances.