Film, library and television music with Jonny Trunk. Today the OST has an unexpected airing of all three exceptionally rare Clark-Boland Big Band LPs made for KPM. The internationally famous poll winning band included the cream of European and American musicians, but quite why and how they made three LPs for the London based library label is anyones guess. So, Jazz Convention I, II and III, possibly the rarest set of all British library LPs get a full hearing today. Hurrah!