🛡️ Certified Examination Rigor: Curtis Spiel 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.
Long-term Seattle RPT and instructor on piano action regulation and damper servicing at PTG conventions. Dedicated residential and studio tuning throughout Seattle.
Seattle Piano Technicians Guild Directory (seattleptg.org). Record audited October 2026.