I generally upload single pieces of music I like that seem not to be available otherwise on YouTube, with a particular emphasis on high sound quality. The music is quite often ambient-based or modern electronic downtempo, often leaning towards a psyscene vibe. Occasional classical pieces - mostly chamber music - find their way to my channel as well.
I always attempt to point the listener towards the artist's direction or, alternatively, wherever the works in question can be purchased. Though many contemporary small-scene musicians work primarily for the sheer acts of creation and sharing (or so I believe), financial support is always welcome, and should be considered seriously wherever there's a creative spirit worth nourishing. The more direct a source, the larger an impact on the artist.
More info on my music taste can be found at my last.fm profile, linked below.
I read all comments posted on my uploads and will gladly respond if directly spoken to. :)