I've been beta testing software and hardware for about 20 years. Dolby trying to test software for recording music on your Android cell phone. They are looking for musician and asked me to refer people. So no better place to ask someone to do so is here.
Here's the link .
https://dolby.centercode.com/key/musicrecording

Haven't referred people before, but all I know is they said this code is unique to me and it should be used if I want to get credit.
my referral code is: Forward beagle

https://www.betabound.com/ is where I do most of my testing and it's been the longest. I've actually have tested Streaming devices, TV's, GPS, Cell Phones, software, and a lot of other stuff.