Piano,Vocal,Voice - Level 3 - Digital Download SKU: A0.1276817 By Stokes Band Music. By Julian Casablancas. Arranged by Gabriel Lawson. 21st Century,Rock. Score. 10 pages. Gabriel Lawson #868504. Published by Gabriel Lawson (A0.1276817). “Under Cover of Darkness� is a solo voice arrangement with accompaniment. Original key. Difficulty 6/10. Range C#3-B4 (Optional harmony C#3-D5).