Actually I publish covers of Led Zeppelin songs and post different stages of the covers. So first the drums, next the bass and so on until I have recorded the whole song. I am not a virtuosos , but I can play many different instruments and sing. I have even started to play drums. I know a lot about theory, arrangement and composing. Usually I don't play the songs totally accurate. I prefer to go for live-feel of the performance and try to avoid too much editing. Sometimes I arrange a song for a different instrument. I also publish own music under the moniker of "heartscore". If you like Powermetal a la Judas Priest, Manowar and Iron Maiden you should give it a try:
heartscore.bandcamp.com