Bill Tamblyn is a British composer who has been a pioneer of the music of worship since the days of Vatican II in the mid 1960s with music published by several distinguished companies such as Oxford Press, Boosey & Hawkes, Novello, Oregon Catholic Press and Jabulani Music. He has contributed to major hymnals in the UK, and has edited a definitive edition of the Rachmaninoff Vespers for Boosey Hawkes. He is the sole proprietor of Chiswick Music, a home based publishing company which he founded in 1973 while living and teaching in London, its function being to disseminate the music of worship which the major publishing houses of the day were unable or unwilling to distribute.