I'm trying to put together a little list of links to free, online resources for learning an instrument. One of the biggest barriers for me as a beginner has been finding a decent program that will allow me to progress efficiently.
I've got the ones that have been working for me for the few instruments I'm learning, but obviously there is going to be more out there than what I've personally come across, not to mention stuff for all the instruments I don't play.
Here's the pastebin where I'm compiling this: http://pastebin.com/zBq4aPme
Anyway, help me out. Give me links to free, online resources for learning an instrument. Preferably resources that you have used, or at least ones you know firsthand aren't bullshit.