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Masterclasses for piano technicians about Steinway & Sons concert pianos

Intensive hands on training - in small groups

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Stefan Fritz

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Overview om my seminars

Steinway Damper

Seminar – Damper & sostenuto system

Steinway Tone-building

Seminar – Tone-building

Steinway Action revision

Seminar – Action revision

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Steinway damper & Sostenuto systemMasterclass

Steinway damper system is precision and precision can be trained

With the Steinway damper system, there are no additional parts on the tangent to adjust the damper to “damper half-way” and “damper timing”. It's technically simple, durable and reliable, but really difficult to adjust. Many technicians tell me that they don't like working on the dampers.

I think this is mainly because there is hardly any training for it. 

When do I need to replace the damper felts? How do I properly crank a transition damper? How do I eliminate disturbing damper noises? 

In this seminar you will learn everything about the Steinway damper and sostenuto system so that you are prepared for all problems during repairs, new installations and on the concert stage.

The course concludes with an intensive learning experience and you will then be able to do this independently at home. You can take the modified damping system home with you and install it in another Steinway grand piano with only minor adjustments.

What you should know about my seminars

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Style

Deep- learning and intensive hands-on with your own Steinway & Sons grand piano

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Duration

5 days
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Location

Berlin & Portugal concert venue & your music college

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Spare parts

Steinway damper heads with wires.

Spare parts price on request.

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Participants per group

Small groups of 3 to maximal  4 Participants 

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Prices & dates

1 week 1.980€ | + spare parts | +19% German VAT

4.5. – 8.5. 2026 (fully booked)
26.10. - 30.10.2026
23.11. – 27.11.2026
Additional dates can be individually arranged

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Detailed seminar contents

  • Install a damper system with new wires and adjust to Steinway - standards
  • Damper Tray Repair and Positioning (old/new Steinways) and key end felt repair
  • Learn about generational differences in the damper system, how to repair the guide rail and how to build and install a new damper guide rail
  • Learn when, why and how to replace damper felts & wires
  • Identify the tools and materials required
  • Correct damper regulation to Steinway standards
  • Damper functionality for "half pedal" playing
  • Dealing with una-corda noise and reducing typical Steinway damper noise and ringing
  • Preparing the damper system for concert performances and recording requirements
  • Controlled legato settings
  • Sostenuto installation and proper regulation
  • Correct trap work adjustment