This video shows how you can tune your melodica. This video was recorded when I was fixing my own melodica and I was able to tune all the notes on my melodica by doing the same steps seen in the video. / thetechmusician thetechmusician
I found a video today of someone who seems to have made a device for that. It's a sort of plastic chamber with a cushioned ring that fits over the reed to make an air-tight seal. There's a tube leading from the chamber so you can blow and activate only the reed beneath it to check the tuning. Really clever, but I don't think it's commercially available - unless the video was old and it's now for sale somewhere. Might be worth doing a search.
@@macronencer Thanks for the information. I searched and found a DIY-looking device for testing the notes without putting the screws back. Did you also find something similar to this device? ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-e8f23-Rbn3Q.html
I finished tuning my melodica just right now and I did it without putting the screws back. The point is that the sheet has to just be held down so that air doesn't escape so you just have to exert enough pressure. I only needed to really do this at the sides of the sheet. it's easiest with the non-middle notes as you can just press the button with your knee right underneath that part of the melodica for example and on the other end, use the circle thingies on the side to leverage the sheet into the melodica. Your problem is probably solved already but for any other people who might want to know