MMD Archives April 2011 Contents of Digest 2011.04.08 Prev  Next Nr Subject Author 01 Baldwin Manualized Player Music Roll John McClelland 02 Art-Echo Apollo Rollography Ken Long 03 Rythmodik, QRS Autograph & Art-Echo Apollo Catalogs Andrew Barrett 04 Seek Microswitch for Modern Aeolian Player Piano Larry Schuette