I imagine these threads have gone on for years. I've submitted my C.V. on half-a-dozen or more instrument forums, but...since I've been bassin for about 15 years, and I gig the most on bass, I guess it's one of my mains. Actually, my goal has long been to become a jazz bassist...but my experience is--whenever I get serious on one instrument, a gig opportunity comes up for another instrument and style.
I'm an old guy--started on school sax at age 8, then electric guitar and lessons at 11. Since then, I never saw a musical instrument that didn't compel me to try to learn to play. I've performed on:
bass
guitar (classical, flamenco, and various fingerstyles, slide, rags, blues..)
drums (all styles, but love jazz and latin)
percussion and congas, some tabla
fiddle (cajun, old time, Irish, scandi, rags)
banjos (tenor, plectrum, and 5-string...bluegrass, old time, Irish, ragtime, standards)
mandolins (any style)
mandola, cittern, octave mandolin, bouzouki (any style)
keyboards/synths (reggae band...fun, but skankin is boring)
hammered dulcimer (mostly fiddle tunes and O'Carolan harp tunes, xmas repertoire)
pedal and lap steel (country, blues)
diatonic button accordian and concertinas (contradance, Americana, cajun, scandi)
ukulele (singing standards)
I've recently returned to woodwinds--my first instrument and first love. I have a set of saxes, flute, bass clarinet, but spend most of my time with standard soprano clarinet--most expressive, and intuitive for me, for some reason)
I've dabbled on:
oud, saz, tin whistle, piano accordian (on which I love to play blues/zydeco)
I get obsessed and spend "time" with an instrument and a style. Lately, it's been Mingus/Dolphy and clarinet...and scandinavian music.