Pengyin Dynamic Score Reader is a portable instrument fingering learning tool. It can identify the sound of the instrument playing, display the position and strength of the notes in real time, and provide the function of tracking the performance. However, the Pengyin Dynamic Score Reader may not have technical scores because the characteristics and usage of technical scores are not suitable for its functions.

Technical notation is music notation written for specific techniques of a certain instrument. It usually contains some special fingerings, string pressing methods, playing techniques, etc. The purpose of technique notation is to help instrumentalists master and improve specific techniques, such as scales, arpeggios, vibrato, and more.

The main function of Pengyin Dynamic Score Reader is to display the position and strength of notes in real time, and to provide the function of tracking performance. It is more suitable for assisting the process of playing an instrument in real time, helping the player accurately locate and play notes. Technique scores, on the other hand, focus more on the learning and mastering of specific techniques, which usually require performers to master them through multiple practices and familiarity.

Therefore, the reason why Pengyin Dynamic Score Reader does not have technique scores may be because its original design is not to focus on the learning of specific techniques, but to provide real-time guidance and feedback for instrumental players. If you need technical notation, consider using other scores to get help with specific techniques.