Electronic Keyboard Pitch Learning via Dynamic Key Highlighting
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Solution Overview
Problem
Conventional electronic musical instruments with lesson functions either interrupt music playback until the correct key is pressed or advance to the next tone regardless of pitch, making it difficult for beginners to feel like they are playing music effectively, as the music advances even when keys are pressed with incorrect pitch.
Innovation Solution
An electronic keyboard with lighted keys that designates a range of keys to be pressed based on pitch information, using a processor to display identifiers for correct keys and automatically progress music playback only when the correct key is pressed, ensuring that music advances in sync with correct key presses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If music playback is interrupted until the correct key is pressed, then pitch accuracy is improved, but the player cannot feel like they are playing music continuously
Solution Approach 1:
The system dynamically adjusts the response behavior based on timing. Within a predetermined time window after the reference tone, pressing any key advances the music (maintaining continuity). After the time window expires, only the correct key advances the music (ensuring accuracy). This dynamic temporal differentiation resolves the contradiction between continuous playback and pitch accuracy.
Solution Approach 2:
The system预先 sets a time window for acceptable key presses. During this preliminary period, the system accepts any key press to advance music, allowing beginners to maintain continuous playback feeling. The system then transitions to a stricter mode where only the correct key is accepted, ensuring pitch accuracy is ultimately enforced.
2Productivity
If music advances when any key is pressed regardless of pitch, then continuous playback is maintained, but pitch learning effectiveness deteriorates
Solution Approach 1:
The system changes its key press acceptance criteria dynamically based on whether the current time is within the predetermined time window. Initially, any key press is accepted (maintaining continuity). Later, only the correct key press is accepted (enforcing pitch accuracy). This dynamic adjustment ensures both continuous playback and effective pitch learning.
Solution Approach 2:
The system provides a preliminary opportunity window during which any key press advances the music, allowing beginners to experience continuous playback. After this preliminary window closes, the system enforces strict pitch requirements, ensuring that pitch learning effectiveness is ultimately achieved.
3Measurement precision
If only the correct key is highlighted, then pitch precision is improved, but beginners cannot easily identify the key range to press
Solution Approach 1:
The system applies different visual qualities to different keys. The reference key (correct pitch) receives strong highlighting (e.g., bright light) to indicate precision requirement. Other keys within the acceptable range receive weaker highlighting (e.g., dimmer light) to indicate they are acceptable alternatives. This local differentiation of visual quality helps beginners identify both the target and acceptable range.
Solution Approach 2:
The system segments the keyboard into different zones based on pitch relationship with the reference tone. Keys within the acceptable pitch range are visually distinguished from keys outside the range. This segmentation helps beginners understand which keys are acceptable to press while still learning the correct pitch.
Data Source
AI summary
According to the present invention, there is provided an electronic musical instrument that allows a player to learn a certain range covering a key of correct pitch and to feel as if he or she were playing the music.The instrument includes a controller to perform a pitches determination process of, based upon first timing and first pitch included in music data, determining pitches within a fixed range from the first pitch, which is allowed to be designated in accordance with the first timing, a display process of displaying an identifier to identify the pitches determined, and an automatic playing process of advancing automatic playing of the music data by producing sound corresponding to the first pitch from a sound producing unit when one of the pitches identified by the identifier displayed by the display process is designated.