Instrumental Duet,Viola,Violin - Level 3 - Digital Download SKU: A0.1279313 Composed by Henry Purcell. Arranged by B. C. Dockery. Baroque,Classical,Opera. 4 pages. Ben Dockery #870806. Published by Ben Dockery (A0.1279313). From Henry Purcell's opera Dido and Aeneas, this is When I am laid in earth arranged for violin and viola duet. Great for lessons, recitals, and performances of all kinds. Intermediate level. Includes score and parts.