Adrian Marriott: Conception, design, implementation, Java programming, Apple Logic engineering skills and a growing knowledge of musical composition

Clive Buckland: Knowledge of musical composition, functional ideas, software testing, proof-reading, web-site advice and Apple Logic engineering skills

Frances Marriott: Ideas about, and knowledge of, musical composition

Chris Rimmer: Some algorithm design, code review and Java programming

Adrian Pasciuta: Author of the original cascading style sheets and web-site advice

A special thanks goes to Fiona Marriott who has patiently listened and contributed to endless conversations about Opus+ when she had more important things to do, for her willingness to try and play impossible musical test sequences on the piano, for her unerring proof-reading skills, and for allowing the substantial time and space for the development of this project.