Recorder Duet Recorder - Level 2 - Digital Download SKU: A0.511946 Composed by Traditional. Arranged by Bragi Thor Valsson. Praise & Worship,Sacred,Spiritual. Score. 4 pages. Bragi Thor Valsson #6471943. Published by Bragi Thor Valsson (A0.511946). A duet arrangement of the well-known Spiritual Nobody Knows The Trouble I've Seen for two recorders with piano accompaniment. The piece is in G Major.