Eat the phikis (Elio & le storie tese) Easter Egg - Hidden Songs

I didn't manage to hear this egg but i'm really sure it works.
You need to go at the end of the album, at the song n°13 "Neanche un minuto di non caco". Go fast forward until 12:20. You'll hear voices and music played very fastly. You have to slow down them and play them backwards. They're about 7 brand new songs never published on a Elio & lst album. For fans only :-)
Cheers from Giggi, proud member n° 455 of Elio Official Fan Club