Conjunto 9 (a.k.a. Noneto) was a tango ensemble set up by Ástor Piazzolla which was active between 1971 and 1972. The short-lived ensemble was based on Piazzolla’s , comprising Astor Piazzolla (bandoneon), (later (piano), Antonio Agri, (violin), (electric guitar) and Kicho Díaz (double bass). To this he added a quartet comprising (2nd violin), (viola), José Bragato (cello) and (percussion). Within a year of its formation the Conjunto 9 had run into financial problems and was dissolved in 1972.