This CD does not have any liner notes, these are my notes.
This is a live performance in Buenos Aires in 1976 with the Nonet "Conjunto 9" (or "Conjunto Electronico) (possibly a bootleg recording). This is the "Argentinian Nonet" (Piazzolla played with an nonet of Italian musicians at about the same time). Trelles sings on tracks 6, 10, and 11
PIAZZOLLA Astor from Felmay Shop