Home / Forums / Buying a melodica / Yamaha P37D vs Suzuki M37 / Reply To: Yamaha P37D vs Suzuki M37 Reply To: Yamaha P37D vs Suzuki M37 August 22, 2017 at 7:54 pm #9181 Martin MParticipant The Yamaha P37D weighs less than the Suzuki M-37C. Perhaps the 3.5 lbs you quoted for the P37D includes its hard-shell carrying case?