. . "Proof Positive (album)"@en . . . . . . . . . . . . "Record Mirror"@en . . . . . . "Album"@en . . "Allmusic"@en . . . . . . . "31257533"^^ . . . . . "Proof Positive is a 1964 album by American jazz trombonist J. J. Johnson featuring performances recorded in 1964 for the Impulse! label."@en . . . . . . . . . . "Proof Positive .jpg"@en . "--05-01"^^ . . . "2320.0"^^ . . "1105085869"^^ . . "Proof Positive is a 1964 album by American jazz trombonist J. J. Johnson featuring performances recorded in 1964 for the Impulse! label."@en . . . . . . . . . "Bob Thiele"@en . . . "Proof Positive"@en . . . . . . . "1964"^^ . . . . . . . . . . . . . . . . . . . "1963"^^ . . . "3216"^^ . . "1964"^^ . . . . .