Keynote Pianoworks

Keynote Pianoworks was started in 2021 by Mathias Walters, a lifelong pianist with 15 years of experience working with pianos. Based in North Charleston, South Carolina, Keynote Pianoworks is dedicated to providing complete service for pianos—from routine maintenance to complex repair and full-scale restoration.

• Tuning
• Repair
• Restoration
• Regulation
• Full Service
• Masterworks Service

• Historical tunings
• Antique instrument preservation
• Custom performance customization

Charleston, Lowcountry

{'quote': 'Mathias is extremely skilled at his trade. He was very detail-oriented and focused. Highly recommend to anyone in the Charleston area!', 'author': 'Charles Crane'}

{'quote': 'Great job, explained the issues found and was very upfront and honest about what needs to happen moving forward. Would highly recommend.', 'author': 'Gil Trevino'}

{'quote': 'Mathias was professional and competent and took great care of our Boston grand piano! I will definitely contact him for the next tuning!', 'author': 'Emily Evans'}