Boilerhouse is a six piece a cappella group specialising in songs faithful to, but not usually heard in, the Cornish repertoire. Although deeply rooted in generations of local singing traditions, Boilerhouse casts its net wider to include folk songs, American Sacred Harp & gospel & some home-spun arrangements of Cornish poems. 1st tenors – Grevis Williams & Mike Conboye. 2nd tenor – Rick Williams. Baritone – David May. Basses – Stephen Hall & Luke Murray.