1. MS Mus. 1738/10 Reference (shelfmark): MS Mus. 1738/10 Title: Robert Simpson Manuscripts: Carl Nielsen, ‘Commotio’, arranged by Robert Simpson Scope & Content: Arranged for piano (4 hands) and dated August 1950. Collection Area: Music Collections Languages: English Date Range: 1950 Extent: 1 volume (21 folios)