Did zoltan kodaly invent musical handsigns?

Zoltán Kodály (18 December 1882 – 6 March 1967) was a Hungarian composer, ethnomusicologist, music educator and conductor. He was the leading figure of 20th-century music education in Hungary and is regarded as one of the world's pre-eminent music educators of the 19th and 20th centuries.

Kodály did not invent musical handsigns, but he did popularise their use in music education. The use of handsigns to represent musical notes was first developed in the 19th century by a French monk named John Curwen. Curwen's system, known as the tonic sol-fa method, was based on the idea of using handsigns to represent the different pitches of the musical scale. Kodály adapted Curwen's system for use in his own music education methods, and it has since become widely used in music education around the world.