Some folks have asked me how to play the English concertina. When I first started back in the 1970s, I put small labels (to identify the musical notes) on every single one of my 48 buttons. I'd find straying, errant notes which had escaped only to find their new homes on my refrigerator, shoes, books or LPs. Eventually, everything on the instrument began to make sense.
I also highly encourage the use of diagrams like these to identify the location of notes, as well as how to make chords with your right and left hand fingerings.
