What I'm listening to today: "Cristal Baschet- Bass Euphone Song", yatsoosh
This dude built, from raw metal, an all-acoustic unamplified instrument based on the "Cristal Baschet" designed by the Baschet brothers in the 50s. The idea is you glide wet fingers on glass rods, and the vibrations are amplified by those giant metal plates. Having built the instrument the guy composed a song for it, which he also sings accompanying lyrics to, in Latin.