This is a loop from the intro of the song Something Elated by Broke for Free commonly used by CGP Grey in the background of his videos.

CGP Grey: www.youtube.com/user/CGPGrey

CGP Grey 2: www.youtube.com/user/CGPGrey2

CGP Play: www.youtube.com/channel/UCzSBv-iml0SCoAE-6v2ReWQ

Hello Internet: www.youtube.com/channel/UCwez9XDNV_wS0WNDZteXjgw

Cortex Podcast: www.youtube.com/channel/UCqoy014xOu7ICwgLWHd9BzQ

Original Song:
youtu.be/kxh4S2A8Q4U