I've played guitar since age 11, still trying to get the hang of it.
Dan of @Lil & Dan.
For the multitracked tunes I play real instruments: various guitars, bass, ukulele, drums, percussion, harmonica, and some keyboard -- a dabbler in all, a master of none. 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.
For some tracks, I hit record and just start playing/singing, as if it was open-mike night at the SoundCloud Coffee House.
Some tracks are collaborations with fine vocalists/musicians I've met on SoundCloud, and I thank them for sharing their skills and visions with me.