There's a Gnome in My Pocket: Improv 1,800 (Anglo concertina)

I've had the concertina for three weeks now, and it still works just well enough for me to learn on. The sticky button sticks sometimes, but not always. All the right-hand (treble) notes are weak and airy, which means that when I play a tune, it gets lost. It sometimes takes too much effort just to produce any sound on the right-hand side at all.

It is unclear at which point I will succumb to temptation and purchase a decent concertina online for way too much money.

I've also pulled out my bandoneon, a big boxy concertina meant mostly for tangos. It's sitting beside me in the video. It already has a note that won't stop sounding on the push even though no buttons are stuck, so that's fun.