Composed by Theodore Dubois Twelve pieces is a set of Organ studies for upper intermediate players. Each piece is dedicated to a famous organist and an index at the beginning gives an English translation of the terms used in the book. It features: 1. Prelude in F 2. Offertoire in E 3. Toccata in G 4. Verset de Procession in D 5. Offertoire in E flat 6. Verset-Choral in A minor 7. Fantaisie in E 8. Meditation in E flat 9. Marche des Rois Mages in E 10. Offertoire in E flat 11. Cantilene nuptial in A flat 12. Grand choeur in B flat The most famous of these pieces is definitely the n3 Toccata in G which is also one of Dubois? most renowned works. This piece also exists on its own as a separate score and can be found on the Musicroom website