The essays collected here explore themes and trends within Gerhard's work and comprise the first full length scholarly work on this composer. Among the themes presented is the way Gerhard's work was shaped by his Catalan heritage and his education under Pedrell and Schoenberg. The influence of these and other cultural and literary figures is an important underlying theme that ties essays together. This companion contains the first rigorous study of his electronic music as well as the first accurate catalogue of it. Gerhard's ground-breaking output of incidental music for radio and the stage is also given detailed consideration.