Organ Trio for violin, cello, and organ View cart “Organ Trio for violin, cello, and organ” has been added to your cart. $15.00 Organ Trio was commissioned by Dr. Tido Janssen, former Associate Professor of Cello and String Bass, Hardin-Simmons University. It is in three movements. Organ Trio for violin, cello, and organ quantity Add to cart Categories: Digital Score, Strings Description Organ Trio for violin, cello, and organ. Score and violin and cello parts.