21st Century (2012). Following our recent publication of Liebermann's Four Etudes on Songs of Brahms, Presser is excited to share the composer's Four Etudes on Songs of Robert Franz. While not as well-known as Schubert and Schumann, Robert Franz was a prolific composer of German lieder in the early-to-mid 19th century. Liebermann's etudes on four of Franz's songs retain the original works' charm and style, adding pianistic texturing and depth. -the publisher