So what kind of music did you listen to back then? Back in 2015 i was just starting high school and wasn't that much into music yet but i liked listening to Gorillaz, i still own a few CDs i bought back then
https://www.youtube.com/watch?v=yYDmaexVHic
https://www.youtube.com/watch?v=sY20vr7-MpM
https://www.youtube.com/watch?v=ePoSILQJeOg