"I was walking to Kroger (a US store chain) and saw this guy playing a song," wrote Jaime Tatos Maldonado, who originally uploaded the below video to Facebook by
"It sounded good so I decided to record it.
"By the end of the song three guys started jamming. This truly is music in its simplest form."
"Thanks, I needed that," says the guy at the end.
Yup. Us too.