Foo Fighters frontman Dave Grohl has released a new multi-media offering called Play, a two-part project that starts as a mini-documentary on Grohl’s appreciation for the process of learning and playing music and continues with a 23-minute instrumental composition featuring Grohl playing all seven instruments included in the recording, live in an open studio.

Play begins with Grohl referring to himself as a “kid in a candy store” when he gets into a studio with several instruments and calling the journey of learning music as “a beautiful mystery.” The mini-doc also tells the story of California’s Join the Band studio, which helps children learn to play music by forming ensembles and offering a studio space to play and grow, and its founder John Missenko.

“It’s not something that you ever truly master,” Grohl says about the learning process of music. “You’re always chasing the next challenge.”

Grohl goes into his process and inspiration for the 23-minute “Play” composition, noting that, at times, he would be 20-minutes into the recording on one instrument and force himself to start over the recording in order to improve the song. He also admits that he doesn’t regularly play some of the instruments, like vibraphones and shakers, but wanted to try something new in the endeavor. The video shows Grohl playing each of the instruments in “Play,” sometimes editing multiple Grohls together to great effect.

“It is a lifelong obsession,” Grohl says just before the song begins. “But at the end of the day, just like any kid, the reward is just to play.”

Watch the documentary and hear “Play” below.