- Bandoneon, Arranged By, Directed By – Astor Piazzolla
- Cello – José Bragato
- Contrabass – Enrique Kicho Díaz*
- Electric Guitar – Oscar Lopez Ruiz
- Percussion – José Correale
- Piano – Osvaldo Manzi
- Viola – Néstor Panik*
- Violin – Antonio Agri, Hugo Baralis
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