http://www.foxlinton.demon.co.uk/after8/ A nine-strong a cappella group, singing from Palestrina to close-harmony - available for hire. http://users.ox.ac.uk/~arcadia/ One of Oxford's best choirs. Founded in 1976 to specialise in unaccompanied works, the choir now sings a vast range of music, from Byrd to Britten. http://www.oxfordgargoyles.co.uk/ An elite mixed a cappella group based in Oxford, UK, singing a range of a cappella music from jazz standards to gospel and barbershop. http://www.alternotives.org.uk/ An a cappella group founded by students looking for an Oxford singing group performing something other than traditional choral arrangements.