Requires some effort, what with the primary and counter melodies, all done a cappella, but well worth the work. This lyrical, moving piece is wonderful for any day of the year. It is particularly good for festival use, and has a restorative quality that makes it fittingfor memorial services. Also available in TTBB (HMC597)Instrumentation (HMC927a): Violin 1, Violin 2, Viola, Cello, Bass, and Score**Instrumentation works with both voicings