1. R.M.22.a.1 Reference (shelfmark): R.M.22.a.1 Title: Scope & Content: ROYAL MUSIC COLLECTION. Ambrosio (Carlo). XII Sonatas; 18th century. A set of quartet sonatas for 3 strings, with a figured bass for harpsichord, in score. ff. 92. Carlo Ambrosio, composer: 12 Sonatas: 18th cent: Copy. Collection Area: Music Collections Languages: English Date Range: 18th century Extent: 1 item