Question:
Do I have to write instrumental 'scores' to get my music in films and TV Shows?
Answer
No way. Though plenty of instrumental music gets placed in films and TV, songs with vocals (of all styles) are in increasing demand by music supervisors.

Question:
Are my home recordings good enough, or do I need a "pro" studio recording?
Answer:
Home recordings get placed in films and TV all the time. The instrumental and vocal performances must be good, and the recording quality needs to be reasonably clean, but you don't need 48 tracks and a live string section at the Record Plant to get your song placed.

Question:
How much money can I make?
Answer:
That varies widely depending on the kind of show or film using your music. Money is earned in two ways: the licensing fee, paid up front to the writer/artist, and the performance royalty, which is distributed to the writer by a performing rights organization ( ASCAP, BMI, or SESAC in the U.S.).