I've been composing for all genres of music since I became a professional in 1985, writing albums of production or "library music" or writing scores and themes for TV as shown here, in addition to writing and producing pop and jazz music for rpl.
I produce quite a few Bits and Pieces like this too.
It's amazing where some tracks get used.
Starburst Magazine: DVD and CD Themes
Visual Imagination published a great deal of TV, Movie and Sci-Fi related
magazines, and when they incorporated DVDs VHS (remember them?)
and CDs with them, I provided the music