"For the last year, Fabrizio Cassol (best-known as leader of AKA Moon) has been practicing intensively on the aulochrome. As there is only one model in existence, he is the instrument's only practitioner. Early this year, he premiered a composition by Philippe Boesman written specifically for aulochrome and the night before this presentation played the aulochrome in an improvised music context for the first time.
So, what does it sound like? Well, the aulochrome is essentially two soprano saxophones brought together by a double mouthpiece (with two reeds) and a common key mechanism. Each key is split in two, so the tubes can be played in unison or separately at will. The double mouthpiece means that the saxophone player's mouth muscles get much more of a workout than on a regular mouthpiece. Fabrizio said that he was observing trumpet and trombone players and asking them how they dealt with the demands of their instruments on their embouchure."