"I look forward to [something]" or "I look forward to doing [something]" is a polite way of expressing interest. You will often find it at the end of an email, e.g. "I look forward to meeting with you tomorrow." You can also say "I'm looking forward to [something]" but this is more often used in speech, not writing, in my opinion.
In your particular case, I think you have got the usage wrong; you can still use that phrase, but it probably would not sound very natural. I would recommend something like "I would like to listen to new songs by you" or "I wish you would make more new songs."
Finally your second paragraph has a grammatical mistake near the end; I'll let you figure it out. :)