MMD Archives March 2020 Contents of Digest 2020.03.08 Prev  Next Nr Subject Author 01 Tempo Compensation in Scanned Rolls Richard Stibbons 02 Accenting Holes in Piano Rolls Julian Dyer 03 Seek Nelson-Wiggen Coin Drop Mechanism & Plate Bob Stewart 04 Standard Player Action Keyslip Pushbuttons David Dewey 05 Valve Seats For Wurlitzer Valve Blocks Don Teach