About 6 months ago I decided I wanted to pick up an instrument and after listening to several different instruments I was interested in I've decided on the concertina. And now, of course, there are a lot of different options out there for concertinas and I have no idea where to start, how many buttons, which style, brand, shape etc. I'd prefer something portable, and while I'd like something that won't have a steep learning curve I'd rather have something that has a lot of room to grow into skill-wise. Music I'm interested in playing is irish, celtic, english, 'sea shanty', accompanying a banjo/guitar. Suggestions on where/how to learn would also be appreciated.
Thanks,
Sam