1. MS Mus. 1804/5/16 Reference (shelfmark): MS Mus. 1804/5/16 Title: Thea Musgrave: orchestral works. 'Autumn Sonata-Concerto for Bass Clarinet and orchestra'. Scope & Content: The work was formerly known as 'Midnight Sonata'. Collection Area: Music Collections Languages: English Date Range: 1993 Extent: 2 volumes