It's easy for accordion players to become inverted. 120 basses are so fecking heavy.

It's a boom-tish thing, the bass being the boom, counterbass tish. Just to make that painfully obvious, in G, it's G bass, G major chord, G counterbass, G major chord.

Sounds OK fast, even though the slow speed of learning makes it sound a bit mechanistic. It's used to its best effect by only using sparingly, chucking on D bass instead of the G counterbass in the example above. Also, sustaining the counterbass through a couple of beats leading into a key change can sound neat.

Could go on ad nauseum, but will close by advising that I found it quicker in the long run to learn bass playing at the same time as treble playing, concurrently.

You need to speak to CarolC on any accordion related subject. She is the greatest ambassador on the 'Cat for this wonderful instrument, and a good friend to make. Hit 'accordion' into the search box thing; you will find her there.

Good luck

Skipjack