Complex sentence: After a brief stint playing bass guitar in his middle school band, he turned to making beats in the seventh grade at age 13, when his mother bought him a laptop and he got a copy of the music production software FruityLoops.
Split into simpler sentences: After a brief stint playing bass guitar in his middle school band, he turned to making beats in the seventh grade at age 13. This happened when his mother bought him a laptop and he got a copy of the music production software FruityLoops.