If you already play piano, the Indian harmonium is easy to learn and an easy, portable acoustic instrument to carry to sessions or gigs. I think it's great. You don't have to strap it to your chest and play the keyboard sideways (ha!) and I found it faster to get up to speed than trying to play concertina. I would like to be able to have the time to learn the concertina, as well, but the harmonium was a quick solution to add another acoustic instrument to the mix, something no one else in the group plays. Also, the wood makes it a beautiful instrument, and I always get curious people coming up to check it out.
alice