Addison Singers 50th Anniversary - Joint concert Jazz and Classical Choirs Saturday 9 July, 7.3opm @ St Peter's Church, Southfield Rd, London W4 1BB This 50th Anniversary concert will involve all Addison groups and classes in a varied Summer programme.   Music to include:  Verdi - Chorus of the Hebrew Slaves/Anvil Chorus 0rff - O Fortuna (from ‘Carmina Burana’) Vaughan Williams - Let all the world in every corner sing Sondheim - Sunday (from ‘Sunday in the Park with George’)…