Walter Wanderley The "number 1 organist in Brazil", Walter Wanderley, proved that it was possible to combine good taste and modern arrangements in a commercial and very dancy repertoire. His albums always made the "hit parade" of the time, be it samba, rock, boiero and especially jazzy Bossa - which was his biggest trademark, thanks to the smash hit Samba de verao, recorded by him in the US, in 1966, with his unique percussive key-board playing.