This is a fingering diagram for a 30 button Anglo-Irish Concertina, for single notes as well as major and minor chord combinations. Please note this is for a 30 button concertina; if you have more or fewer buttons these fingering diagrams will not work for you. You should also know this is for a chromatic concertina; if your concertina is not chromatic, these chord charts and fingering diagrams will not be useful. This is also for a concertina tuned in C/G; if your concertina is tuned for different keys, this will not work. Finally, this is a Wheatstone keyboard layout; if you have play on a Lachynal or Jeffries keyboard, this will not work for you.