Hmm ... like Joe, not sure I've ever taken the time to do this before now. Let's see how it goes:
Past
Redline - '70s & '80's rock cover band, my first "band" in high school
Tim Johnson Band - classic rock cover band, played a few house parties with a friend's band
Kulprit - '70s & '80s rock cover & original band, the majority of my high school time
Nassty - mostly '80s rock cover band, first band out of HS to play in bars and professional clubs (lots of spandex and hair spray in this one)
Bad Apple - '80s & early '90s rock cover band
Streetwise - classic rock cover and originals band, did a bunch of fill-in gigs with this band from Indy while they were playing in the St. Louis area, simultaneous with playing in Bad Apple
Kid Curious - mostly '80s rock cover band, end of the '80s
Three Blind Mice - classic blues and blues rock trio cover band, broke up after about a year when the drummer went mental on us
Ten Tribes - '90s "modern" rock covers and original band, started by a couple of brothers who quarreled a lot
Knucklehead - mostly '80s & '90s hard rock and heavy grunge cover band, found "my sound" in this band
Those1Guys - classic and modern rock cover band; a smokin' trio that played A LOT, and was maybe the best band I've ever played in
Otto's Revenge - original punk rock, recorded with them for their second album and played a couple of shows before I could no longer stand to be in the same room with the singer
BenWahBob - "danceable" classic and modern rock cover band, was in this band for about 7 years in the mid- to late-2000s, very popular local bar band
Knucklehead 2.0 - revamp of earlier band, but I played bass and keyboards now.
Double Ds - classic rock and light country cover band, played a couple of fill-in gigs with them, named because two members names started with D
Just Mr. - classic rock cover band, played several months of fill-in gigs with this very popular local bar band when their bass player was having heart problems around 2010-2011 (he just died last week during another operation)
Poison Apple - modern chick rock and light country cover band, wife of the Just Mr. drummer put together a band that lasted all of about 3 gigs
Incognito - classic rock cover band
RED - Sammy Hagar tribute band based in St. Louis, essentially Incognito with a dedicated keyboard player covering one artist
Nine Lives - REO Speedwagon tribute band, spinoff of RED, same guys
Mean Street - Van Halen tribute band based in St. Louis, I played one gig with them in Decatur IL when their bass player was hospitalized the day before the gig
A.L.I. - classic rock cover band, name is the singer/drummer's initials; when me and the guitar player from RED played with him, we were known as "The B Team"
Rock Bottom - '80s metal cover band, played more fill-in gigs over the years with these guys than I care to admit
Present
Happy Little Trees - acoustic rock trio cover band, I play acoustic bass guitar and cello, great 3-part harmonies with these guys (and yes, named after Bob Ross)
Chickenhead - my heavy funk originals project, just me playing guitar, bass, drums, and keyboards
PJS - my progressive rock originals project, again just me writing and playing all parts
Binary Treadmill - my digital atmospheric music originals project, still all me
There have been a few others over the years with whom I've either played briefly or recorded, and simply can't remember them all.