I've played guitar since age 11, still trying to get the hang of it.
For the multitracked tunes I play acoustic and electric guitars, bass, ukulele, drums, percussion, harmonica, and some keyboard -- a dabbler in all, a master of none.
Some tracks are collaborations with fine vocalists/musicians I've met on SoundCloud.
I play alter ego "Dan" of @Lil & Dan.
I don't use loops or digital percussion but some instrumental accompaniment is played on a MIDI keyboard with Apple Logic samples. It's all manufactured in my little home recording den, chock full of instruments and noisemakers.
For some tracks, I just hit "record" and start playing/singing solo -- like open-mic night at the SoundCloud Coffee House -- and post the result here. For those, maybe I should add some canned audience sound effects (applause, cheers and whistles, of course)...