Push-pull bellows music box...

Backblip: it was Wednesday night, baby was in bed sleeping and my wife was out singing with her singing group in someone's front room. And so I took the chance for some rare concertina practice, something that fatherhood has somewhat curtailed of late. The sheets at the top of the picture are my home-made chord charts to remind me which chords I have the notes for, and how to play them! There was some harmonica played too (the scales on both instruments are very similar, which helps me to play on the concertina tunes that I already know on harmonica)!