Thanks for asking Tom. For me a gig is a ceilidh, wedding dance or other gatherings where I play for dancing. However, sometimes the music is just for listening; a bit of background music in an old tavern or a nice hotel bar.
I play the music that people expect an accordionist here to play, which is Scottish traditional music; Waltzes, Marches (2/4, 4/4, 6/8), Jigs, Reels, Polkas, Two-Steps, Scottish songs etc. In addition to the Scottish tunes I would have a few country songs and easy listening tunes to mix it up.
I use a musette tuned, standard piano accordion with midi on the left side giving a piano/bass effect.
Ideally I would play as a trio or up to 4 piece band: accordion, fiddle, guitar/singer and drums. But sometimes I just play solo with the midi bass/chords. I occasionally use a drum machine when there are no drummers available.
The videos I have shared previously on the Accordionists Forum with me using a Quint free bass accordion is not representative of what I would play at a gig. I would not use a free bass accordion there, it's unneccesary. The 3 pieces you have heard, are just me noodling about with a free bass accordion for fun and experimenting stylistically.
However, a number of years ago I wrote and published a book of tunes in the Scottish style called The Kitchen Two-Step. It contains 30 new tunes in the traditional style to fill the house with music (an old fashioned house party/kitchen ceilidh theme). I think I still have one or two copies left, if you PM me your address Tom, I would like to send you a copy, if that's alright with you.
All the best buddy.