🛡️ Certified Examination Rigor: Edward McMorrow holds the Registered Piano Technician (RPT) credential from the Piano Technicians Guild. To attain this credential, the practitioner completed and passed standardized written theory, aural concert tuning, and practical grand/vertical action regulation examinations.
Master technician, researcher on action inertia and light-hammer tone production, and PTG convention presenter. Specializes in custom concert grand rebuilding and voicing.
Seattle Piano Technicians Guild Directory (seattleptg.org) & Technical Research Archives. Record audited October 2026.