Join Dean Reyburn in an immersive exploration of Grand Piano Action Geometry, encompassing two comprehensive segments tailored to deepen your understanding and refine your practical skills.

Grand Piano Action Geometry Part 1: In this hands-on session, participants will explore the basic principles of grand piano action geometry. Through meticulous measurement techniques, attendees will learn to determine the radial arms of action parts including the wippen, hammer shank, and key ratios. Additionally, you'll  master the calculation of the action ratio, with an alternative method showcased for comprehensive understanding.

Grand Piano Action Geometry Part 2: Building upon the knowledge gained in Part 1, participants will apply their understanding to address real-world problems encountered in grand piano actions. Dean will demonstrate various practical solutions for correcting incorrect function, emphasizing the concept of the magic line (half-point line) and providing insights on how to effectively rectify related issues. Furthermore, attendees will witness demonstrations on hammer weight reduction and weigh off of the action using the balance weight method.

Key Features:

• Hands-on learning experience facilitated by masterclass instructor Dean Reyburn.
• In-depth coverage of basic principles and practical problem-solving techniques in grand piano action geometry.
• Demonstration of measurement techniques and calculation methods for action ratios.
• Real-world application of knowledge through troubleshooting and practical solution demonstrations.
• Emphasis on understanding and fixing common action problems, including parts modification and replacement.
• Expert insights and guidance from Dean Reyburn, a seasoned professional in the field.

Course Objective:

By the end of the masterclass, participants will:

• Possess a thorough understanding of grand piano action geometry principles.
• Be proficient in measurement techniques and calculation methods for action ratios.
• Gain practical skills in troubleshooting and resolving common action problems.
• Feel empowered to apply various practical methods for solving action-related issues, including parts modification and replacement.