I am principally a violinist, and I have enjoyed orchestral playing for decades. I play in a regional orchestra, and I'm the first violinist in a local string quartet that plays mostly for weddings. I also enjoy improvising in jams, and it appears we have a good scene for that in my town. I can play viola, but I rarely do, although I love the sound and timbre of the instrument. I have played the mandolin now for about 1 1/2 years, and with the same tuning as the violin, it can enjoy much of its music, too. It has lots of jamming potential, too. For 7-8 months, I have played the English concertina, and I adore it! I practice it most days, and it has a plaintive tone that projects pretty well. For you EC buffs, it is a Wheatstone treble (48 keys), made in the early sixties. I have made some inroads with an Anglo concertina and the Cajun melodeon, but EC right now is my big love in the bellows community. Now I am avidly researching the CBA, and I love all that it can do. It's a question of when, not if. I lean toward the B system. I just can't wait to get my hands on one and get started!