Gloucestershire Academy of Music
Gloucestershire Academy of Music (GAM to its friends!) offers an exceptional level of professional music tuition in an informal and friendly atmosphere. We are very successful in creating musical opportunities for all ages and abilities, from individual music lessons and group sessions to performance opportunities, workshops and master classes. http://www.gamweb.co.uk/
IMSLP – vast quantities of sheet music for free download.
Of special interest is their quartet index at http://imslp.org/wiki/List_of_Compositions_for_String_Quartet. Or you can search directly for the sheet music of a composition you are interested in, using Google search. eg “IMSLP Elgar quartet”.
Play String Quartets ! 