Home / Forums / Melodica construction, repair and maintenance / Tuning Standard / Reply To: Tuning Standard Reply To: Tuning Standard July 28, 2015 at 9:03 am #5720 Alan BrintonParticipant Regulated pressure is a great idea, jeff. I’m curious as to the source of air pressure. Something steady and quiet, right? Would an adjustable fish tank air pump work? something like this? or this?