I sing in overtone. Overtone singing is a vocal technique for producing a vocal timbre characterized by two notes of different frequencies. My first voice is a root D, my second is a whistle. more information on this song: en.wikipedia.org/wiki/Overtone_singing. UCS Category: VOXSing. Duration: 00:18.
I hang up the receiver of the last telephone box still in operation in metropolitan France. It is in Murbach (68). UCS Category: COMTelph. Duration: 00:01.