I heard that the combine wanted music clips of original music? Is that a false rumor? If not, I do hapen to create my own songs which fit the sci-fi theme. (Non Lyrical). But then again, this may only be a rumor?
Mikel I think he is refering to the Musician NPC. There was a call out when it was being implemented for people to send in some MIDI files (I think). Imam, your best bet is to go back and have a look at that Sim News post (you'll have to use the archive option to go back and have a look for it) and find out who it said to contact.
If you can't find it, go bug Jesfa, I'm sure he'll find out who it should go to.