Hello while we are on the subject of piano accordions, can you please advise me on how to work the botton side of things. I know the set up, but I bought a video about it and the man said press two buttons down at a time and hold them there, and then change to the next chord and keep them pressed in, but when I watch people who can play their fingers are up and down in and out on and off. Does anyone know what I mean, and have you any idea how I can improve? Before I ring up for some lessons. Cheers.