Bergonzi, Jerry 1947- Hexatonics / Jerry Bergonzi - Rottenburg N. [Germany] : Advance Music, [s.f.] - 289 p. - Inside improvisation series v. 7 . Subjects--Topical Terms: IMPROVISACION (MUSICA)JAZZ - INSTRUCCION Y ESTUDIO Dewey Class. No.: 781.655193 781.655193 / B499/hex