Instrumental Duet Harp,Instrumental Duet,Voice - Level 3 - Digital Download SKU: A0.1014317 Composed by Adam de la Halle, Anonymous, Raimbaut de Vaqueiras, Richard Cœur de Lion, and Wizlau von Rügen. Arranged by Michael A. McKay. Classical. Score and parts. 20 pages. Michael A. McKay #6079403. Published by Michael A. McKay (A0.1014317). A Medieval Songbook is a short collection of songs from the Middle Ages, in simple, historically-inspired arrangements for voice and lap harp.