Micro-tuning Device for Piano String Pitch Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Keyboard-operated stringed instruments, such as pianos, struggle to produce micro-intervals due to their tuning systems, requiring extensive time and expertise, and existing solutions like quarter-tone pianos are impractical for live performances due to size, weight, and cost.
Innovation Solution
A micro-tuning device that attaches to a string or choir of strings between the bridge and agraffe, using a mass and attachment device to adjust the speaking length, with adjustable angle and magnetic securing mechanisms, allowing for precise pitch alteration without retuning the entire instrument.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If tuning pins are used to produce micro-intervals, then pitch accuracy is improved, but tuning time and expertise requirements increase significantly
Solution Approach 1:
The invention divides the tuning function into two parts: the main tuning is done through the tuning pins for the standard 12-note system, while micro-interval adjustments are achieved by adding separate mass elements to individual strings. This segmentation allows micro-tuning without requiring complete retuning of the instrument, significantly reducing tuning time while maintaining pitch accuracy.
Solution Approach 2:
The invention introduces an intermediary mass element that attaches to the string between the bridge and agraffe. This intermediate mass modifies the speaking length of the string to produce micro-intervals without affecting the tuning pin configuration. The intermediary mass acts as a mediator that enables micro-tuning while preserving the main tuning structure.
2Adaptability or versatility
If tuning pins are adjusted to produce micro-intervals, then pitch variation is achieved, but sound quality deteriorates due to unpleasant sounds
Solution Approach 1:
The invention applies local quality by placing mass elements at specific locations on specific strings rather than uniformly adjusting all tuning pins. The mass is positioned between the bridge and agraffe, creating a localized modification that affects only the speaking length of the targeted string. This localized approach maintains proper sound quality while achieving the desired pitch variation for micro-intervals.
3Adaptability or versatility
If quarter-tone pianos are used for micro-intervals, then micro-tuning capability is improved, but device size, weight, and cost increase making them impractical for live performances
Solution Approach 1:
The invention extracts the micro-tuning function from the entire instrument structure. Instead of building a complete quarter-tone piano with dual keyboards and duplicated mechanisms, only the essential micro-tuning capability is extracted through simple mass elements that attach to individual strings. This extraction reduces the instrument to its basic form while adding only the necessary micro-tuning function, making it lightweight and portable for live performances.
Solution Approach 2:
The invention creates a simplified copy of the micro-tuning function rather than implementing the full quarter-tone piano system. Instead of duplicating the entire keyboard and action mechanism, simple mass elements are used to replicate the pitch-altering effect of quarter-tone pianos on a minimal scale, achieving the same musical capability with dramatically reduced weight and complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables quick and precise micro-tuning of individual strings, reducing the need for extensive retuning and overcoming the limitations of existing solutions by allowing pitch adjustments without altering all strings, making it suitable for live performances.
Implementation Method 1
The attachment device may comprise a magnet for attaching the device to a ferromagnetic string or choir of strings
Implementation Method 2
The mass may comprise a magnet and the magnets of the mass and attachment device may be arranged such that an attractive magnetic force is produced between the magnet of the mass and the magnet of the attachment device when placed on opposite sides of the string or choir of strings
Data Source
AI summary
The invention is a micro-tuning device for pianos and other keyboard-operated stringed musical instruments. A mass is secured to a single string or choir of strings in the musical instrument by an attachment device between the bridge and the agraffe, nut or V-bar, thereby reducing the speaking length and increasing the pitch of the string.