They have, in fact, produced a substantial amount of music, much more than they reveal on their site.
Being fortunate enough to have a friend among their members, and to live within travelling distance of their first (and to date only) live show I was able to while away an evening among a crowd of similarly attired persons, sipping at several different concoctions of coloured liquor (from a very alchemical-seeming apparatus) and enjoying the performance of both the Clockwork Quartet, and the many other members who make up their tales.
I was even lucky enough to get one of their souvenir maps/CDs and have most of the cast place their signatures upon it.
They are of course on that famous ethernet site, facebook -
http://www.facebook.com/ClockworkQuartet and have many projects currently being worked upon.