Karl Henning writes and plays music which no one else dare, in and near Boston. His music has been played and sung on three continents (NA, Yurp and Oz), and there is unconfirmed rumor that an Uruguayan zookeeper has papered adobe walls with the Henning organ Toccata. Karl has served at different times as Interim Choir Director and Composer-in-Residence at the Cathedral Church of St Paul in Boston, where he composed a 40-minute unaccompanied choral setting of the St John Passion (premiered ...