Caswell Butterfly 27

This is a sample of the Caswell Butterfly 27 (now redesigned as a 29 string) recorded solely through the Caswell HarpSound System, made to Chris Caswell's specifications by LR Baggs, one of the finest providers of live sound gear.

[@pheona1000]

The tuning mechanism looks like you could actually tune whilst playing without having to get the tuning wrench out - is this correct? Is there a facility for attaching a strap, which would be useful in harp therapy if moving from ward to ward.