>Eric > >S. Grahams article appeared Jan. 1988 > >Mark Ritchie RPT To enlarge: PT Journal, 1987, December, page 17 PT Journal, 1988, January, page 14 Keith A. McGavern kam544@ionet.net Registered Piano Technician Oklahoma Chapter 731 Piano Technicians Guild Oklahoma Baptist University Shawnee, Oklahoma, USA
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