🛡️ Certified Examination Rigor: Michael A. Crosby 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.
Experienced RPT serving Kennesaw, Acworth, and Marietta. Complete grand piano action regulation, string replacement, pinblock restoration, and tuning.
Atlanta PTG Chapter Directory (my.ptg.org/atlanta/findatechnician). Record audited October 2026.