Home / Forums / General melodica discussion / Sound holes on the back / Reply To: Sound holes on the back Reply To: Sound holes on the back March 10, 2014 at 5:03 am #1956 Melodica-MeParticipant Lowboy, the one that’s comes to mind is the Suzuki pro 37 it has a sound hole on the bottom, I was thinking of getting this melodion to try to get a wah wah effect from it and thinking of the hole on the bottom to try to achieve it. Melodica-me