Home / Forums / Buying a melodica / Yamaha Pianica P-37E – My Report / Reply To: Yamaha Pianica P-37E – My Report Reply To: Yamaha Pianica P-37E – My Report November 19, 2018 at 11:47 am #10503 FREDERICParticipant thank you for your help in identifying this phenomenon …. when you have the instrument in your hands can you confirm me or not the slight curve please?