Hey man, just checked it out, very lydianesque feel for a blues track! Nice though, like the off feeling (in a good way) - has the odd Vai influence hear and there which sounds cool. Post your set up in the recording part of the forum and you might be able to get an answer to the hum (may not be a groundloop). Also, change the settings on your page to accept comments and recommed other artists - I'll link up to you and leave some comments.