|Want to tell a friend about Trio in E-flat Major K. 498 (Kegelstatt) : Revised Edition Piano, Clarinet (Violin) and Viola Score and Parts : Ed.: Herttrich, Pn. fing.: Theopold : Score & Parts HN 63 : # HN63? It's easy. Just enter the information requested below, click the "E-mail a Friend" button, and your message is on its way.