MMD Archives May 2007 Contents of Digest 2007.05.10 Prev  Next Nr Subject Author 01 Christie's Final Mechanical Music Auction 31 May Laurence Fisher 02 How Piano Rolls Were Created Mark Kinsler 03 Source of Ivory Keytops Jurgen Goering 04 Seek Take-up Spool Microswitch for Musette Jeff Bridges