AnimeMusicVideos.org

Probably the best method is: Photosounder described in this article

You can find youtube demos there showing how to do what you want

Audacity might work for you, and it's free. A more sophisticated alternative if you don't mind a DAW (still with full editing capabilities) would be Reaper It's effectively free. There's only one version so the evaluation version is exactly the same as the full (personal or commercial) version. The...

http://fixtonline.com for some gritty electronica, industrial, metal, soundtrack type music