re 1 row versus 2 row. its the same pattern on a 1 row, 2 row, 3 row, anglo concertina, chemnitz and bandoneon, the difference is 1. the the more buttons the more notes 2. there are occasional pattern changes ie same note on the push/draw--the difference is style. with your current instrument i suggest: 1. learn the scale. the buttons have a sequence, familearize yourself with it and play up/down. 2. learn the key you are in then you know which notes you have. also 1. congratulations on fixing the bellows they can be a source of great grief. 2. the stops open up the available reed banks-they are tuned slightly off from each other ("wet") but that is part of the package. 4. as the others have said look for a book on the one row melodeon, get the basics, and then listen, listen listen to alot of recordings and play along. its a style - double noteing, using the available note instead of what the fiddle (who has all the notes) will use. 5.. Listen to Bob B- he is the most accordion savy person i have run across in this column.