About music: These people agreed to let me use their music in SSGX:
http://soundcloud.com/windowsnine
http://soundcloud.com/eb_3
http://soundcloud.com/dawid123d
And those agreed to make more especially for the game:
http://soundcloud.com/deloreandudetommy
http://soundcloud.com/southerntrax
http://soundcloud.com/alien-speech
I'm already making a playlist but well... there is problem about so called copying which occur when I'll send this music album for SSGX to someone else to check it out so I guess I'll make a short sample of each track and send album like this.
btw. Names written already on GDocs in Credits table.