Was the diagetic music in The Expanse specifically written for the show?

Question

I'm referring to the music that the characters are listening to within the show, not the music that accompanies the scenes.

To me, this music sounds more futuristic or something that has been written to fit within the setting of the show.

Some examples:

S3:E7 – Where Manéo is seen slingshotting around the planets and finally into the ring.

S5:E2/3 – Where Drummers crew are celebrating around the table.

Answer 1

The first song you're referring to (where he slingshots around the ring) is Highway Star by Deep Purple, written in 1972.

That being said, that particular arrangement was written by Cory Todd and was specifically for the show.