I consider myself mainly a "bass player who also plays guitar, but mostly wanted to be a drummer all along".
Most of my bass work was in spontaneous, jam-band type situations where a song could go 20 min. I often didn't know what key we were going into as the band-leader changed from song to song. Some were known songs, and some were just off-the-cuff jams. I loved locking in with a good drummer.
I also played guitar and sang in a wedding/variety band for many years.
Now that my kids are grown, I am about to try yet again to break into drumming. I have some goals, and I will likely attempt to find a good teacher to help reach these goals.
Old MIJ Fender Jazz with EMGs
80's Aria Pro II fretless (replacement ebony board) with Alembic pickup
Avatar 2x10 with neodymium speakers
Custom built S-style guitar, hardtail with Duncan Jazz and Distortion p/u
Epiphone semi-hollow Les Paul Custom
80's BC Rich Mockingbird with Duncan Invader and Duncan Jazz, Floyd trem
etc. (various wah and such)