Small Ensemble Bass Clarinet,Piano - Level 2 - Digital Download SKU: A0.593060 Composed by Traditional. Arranged by David McKeown. Praise and Worship,Sacred,Spiritual. Score and part. 4 pages. David McKeown #6415507. Published by David McKeown (A0.593060). O Mary Donâ??t You Weep is a beautiful spiritual arranged here for Solo Bass Clarinet and Piano.O Mary Donâ??t You Weep dates back to the American Civil War and was recorded as early as 1915. It was later covered by Aretha Franklin and became a favourite in the â??sixties folk revival.