If you’re one of the 7 million that have seen this video you know that certain chord-progressions repeat themselves. A lot. (Even if that Pachelbel comedian guy really overstates his case: buncha those songs don’t even have those chords).
Here’s my favorite: D-G-D-G-Em-A-D-G .
Disclaimer: These songs are up for listening purposes only for a short time. If you’re an artist or label who wants the song taken down, please write me.