The piece is an original idea by Sonia Megías, then Pepe Gimeno converted this idea into the design of a script, and with the animation of Carlos Cueto the video was completed. Sonia finished the music of Metatron in September 2020, after several rehearsals and meetings with the Town Band of Alicante.
Percussion 1 plays triangle, snare drum, suspended cymbal, bass drum and bells.
Percussion 2 plays bass drum, glockenspiel, cowbell, vibraphone, xylophone, temple blocks and triangle.
Percussion 3 plays a tambourine, rattlesnake, glockenspiel, temple blocks and a suspended cymbal.