🛡️ Certified Examination Rigor: Arthur Heller 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.
Registered Piano Technician with over 35 years servicing grand and vertical pianos in Greater Denver. Certified Dampp-Chaser installer with deep expertise in arid altitude humidity regulation.
Official business website (artheller.weebly.com) and Denver PTG Chapter (my.ptg.org/denverchapter). Record audited October 2026.