Home / Forums / Buying a melodica / Melodica Hamond Pro 44 vs Hp 44 / Reply To: Melodica Hamond Pro 44 vs Hp 44 Reply To: Melodica Hamond Pro 44 vs Hp 44 March 7, 2022 at 9:37 pm #14046 Pál KrammerParticipant The range of the Hammond 44H/44HP is from C3 to G6. For comparison, the range of the Yamaha P-37D is F3 to F6. So, the Hammond offers five lower halftones and two higher halftones.