SAB choir, violin, and piano - Moderately Easy - Digital Download SKU: MQ.50-3219-E Composed by Richard Frost. Triduum/Three Days. 11 pages. MorningStar Music Publishers - Digital Sheet Music #50-3219-E. Published by MorningStar Music Publishers - Digital Sheet Music (MQ.50-3219-E). English. Psalms 130:1-5.After the success of the SATB version (50-3209), the composer has arranged it for SAB choir, violin, and piano. The text is Psalm 130:1-5, in which the psalmist expresses deep despair and cries out to God to hear his cry for mercy. This text is often used as an Introit for Easter Eve in traditional liturgies. The anthem is expressive, singable, and easy to perform.