The algorithm presented in this paper provides the means for the real-time recognition of the key signature associated with a given piece of music. based on the analysis of a very small number of initial notes. The algorithm can easily be implemented in electronic musical instruments. enabling real-time generation of musical notation. https://www.roneverhart.com/Ryukyu-Kobujutsu-Buki-Jutsu-Vol-2-DVD-with-Kiyoshi-Yogi/