The Lo-Fi orchestra presents Jupiter from the Planets Suite.

From the original blog post:

"Inspired by the legendary Tomita, the Lo-Fi Orchestra presents Jupiter from Gustav Holst’s Planets Suite."

"There are 11 Arduino Nanos, 6 Arduino Unos, 1 Arduino Pro Mini, 1 Adafruit Feather 32u4, and a Raspberry Pi using ... projects from this site"

"This has been programmed in from scratch from the original orchestral score and the composer’s own arrangement for two pianos."