Discover the intricacies of your upright piano with THE PRATT READ PLAYER ACTION (Single Valve) guide. Authored by The Pratt Read Player Action Company, this comprehensive manual delves into the mechanism and regulation of models F and H, offering valuable insights for dedicated collectors and skilled handymen. The 25-page PDF, with a convenient zip size of 200.3 MB, is an essential resource for anyone looking to master the restoration of single valve systems. Access our detailed guidebook and chart now from our PDF-download store to enhance your piano maintenance projects.