This music tunebook contains 699 tunes that are played at folk music sessions (particularly in the area around Cambridge, England and Redlands, California, or at concertina events in the UK) that I have learned to play on my English concertina. They should also be playable on fiddle, whistle, flute, mandolin, dulcimer, etc. I have also included guitar chord suggestions. Most are traditional tunes from the British Isles (many of Celtic origin) including English, Irish and Scottish dance tunes, but others are an eclectic mix of session favourites.