Kelida, I have (although I don't play it much now) an old - circa 1900 - clarinet in C, simple system. (Not as many keys and twiddly bits.) I think they were used mainly in marching bands. One manufacturer started producing C clarinets in good quality plastic in the late 70s or early 80s but they were tonally a much harsher sound than my old wooden one. Wonderful for traditional music, the fingering is much easier, especially for the keys usually involved in trad music. (Yes, I know, but it's usually G or D when melodeons are involved!) I bought a Bb one afterwards, but couldn't really get on with that, and switched to sax.
Have a listen to Token Women 'The Rhythm Method' - I'm sure they've released further albums but that's the one I have - or to Jo Freya and Kathryn Locke (soprano sax & cello)- 'Strange Combination'. Wonderful stuff.
Jo