MMD Archives June 2013 Contents of Digest 2013.06.01 Prev  Next Nr Subject Author 01 Piano Rolls in France Douglas Heffer 02 Xylophone Orchestrion Music in Marx Brothers Film Eric Stott 03 Seek Durrell Armstrong PPCo Memorabilia Dave Krall 04 Seek Welte "Musicalle" Special Magnet Valves Dave Krall