Mechanical Music Digest Interactive
SFMM
Schweizer Freunde Mechanischer Musik – Switzerland
Journal: SFMM journal (editor Ursula Burgisser)
President: Peter Both
Email: info@sfmm.ch
PPG
Player Piano Group – United Kingdom
Journal: The Player Piano Group Bulletin
President: Piers Lane
Email: https://www.playerpianogroup.org.uk/contact
TPI
The Pianola Institute – United Kingdom
Journal: The Pianola Journal
President: Not Specified
Email: info@pianola.org