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New Pianos
Spirio
Steinway
Boston
Essex
Roland
Silent Systems and Hybrids
New Warranties
Used Pianos
Used Pianos
Certified Pre-Owned
Browse All Inventory
Used Warranties
Buying/Selling
Piano Finder
Testimonials
Trade-In Policy
Renting
Payment Options
Selling Your Piano
Complete Buyer's Guide
Events
Resource Center
Teacher Partner Program
Teacher Recital Request
Resources for Shoppers
For Beginners
For Teachers
For the Steinway Connoisseur
Videos
Complete Buyer's Guide
How old is my Steinway?
About
Expert Staff
M. Steinert & Son's History
Locations
Newton
Boston Spirio Salon
Careers
Service
Request Service
Steinway Piano Care and Maintenance Tips
Steinway Restoration
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Johnathan Kotulski
Lead Service Technician
Jonathan Kotulski is M. Steinert & Son’s lead service technician. He specializes in concert preparation, action regulation, voicing, and
Spirio
calibration and maintenance.
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