Bandoneon – Per Arne Glorvigen (tracks: 3 to 8, 10, 11) Composed By – Astor Piazzolla (tracks: 1 to 3, 5, 7, 9 to 11) Coordinator [Recording - Rio De Janeiro] – Paulo Junqueiro Design – Barbara De Wilde Double Bass – Alois Posch (tracks: 3 to 7, 9, 11) Engineer [Assistant - Paris] – Stéphane Briand Executive-Producer – Robert Hurwitz Guitar – Odair Assad (tracks: 1, 10), Sérgio Assad (tracks: 1, 10) Liner Notes – Gidon Kremer Photography By [ Sérgio & Odair Assad] – Michel Del Sol Photography By [Astor Piazzolla] – Joel Meyerowitz Photography By [Cover - 'Tulip'] – Robert Mapplethorpe Photography By [Gidon Kremer & Astor Quartet] – Christian Herzenberger Photography By [Milva] – Matthew Edginton Piano – Vadim Sakharov (tracks: 2 to 7, 9, 11) Producer [Addional Recording - Rio De Janeiro] – Jaques Morelenbaum Producer, Engineer – Peter Laenger Production Manager – Karina Beznicki Violin – Gidon Kremer Vocals – Milva (tracks: 3)