Lamoureux Violins - Sheet music, books, strings, supplies and accessories for classical musicians; Teaching material and aids for traditional and Suzuki method. Mona Lisa Sound - Offering Rock string quartet sheet music made famous by Hampton String Quartet. Violin Books - Rare collectable violin books. Discordia Music, Inc. - Publisher of new, transcribed, and arranged music for the Double Bass. The ABCs of Strings - Janice Tucker Rhoda's instructional series for strings. Valkyrie Publications - Song books and sheet music for harp and voice: Irish folk songs, Christmas carols, old hymns, new Christian music, and songs inspired by J.R.R. Tolkien, George MacDonald, and Julian of Norwich.