Philip Ambrose's excellent site for Bach source material. This site offers English translations to the vocal works of J. S. Bach along with introductory information on the sources and on performance history of each work. Commentary on the text is found in footnotes
Gloucester Academy of Music runs musical activities for young people during term time and also do residential holiday music courses - both for young people and adults. For adults there is an Adult
Chamber Weekend in April and an Early Music week in July.