21st Century (2012). The two trombone quartets published here are arrangements of vocal settings by Max Reger, Johannes Brahms and Richard Wagner of three poems: • 1.Nachtlied, • 2.Der Falke, • 3.An Weber's Grabe. The three tenor trombone parts are scored in tenor clef, the highest part requiring a player of advanced proficiency due to the range required (C5). -the publisher