Sudre created a group of musicians who were attempting to develop a way of transmitting language through music.
[1] He trained Édouard Deldevez and Charles Larsonneur to play and interpret his alphabet.
The trio toured France, answering questions from the audience using Sudre's violin.
A military application was soon suggested: a bugler on a battlefield could transmit orders to a regiment by playing an appropriate tune.
Sudre then offered the military a set of musical cannons, but they declined the suggestion.