Home / Forums / Buying a melodica / Suzuki Alto Melodion M-37C plus / Reply To: Suzuki Alto Melodion M-37C plus Reply To: Suzuki Alto Melodion M-37C plus September 22, 2015 at 10:14 am #5977 Alan BrintonParticipant The plus is the goose neck flex tube from the Hammond 44. My guess is that it is otherwise just an M-37C. In terms of color scheme, the regular black M-37C would be a better match for your conservative tastes. I have a black M-36 (ca. 1990?) that would also look pretty spiffy with the black tube.