Tona Scherchen, a Swiss composer, studied under several influential music teachers during her career. Some of her notable instructors included:

1. Nadia Boulanger - A renowned French composer and teacher, known for her influence on a generation of leading composers and musicians.
2. Olivier Messiaen - A French composer and organist, known for his unique compositional style and as a professor at the Paris Conservatoire.
3. Luciano Berio - An Italian composer recognized for his experimental approach to music.

These teachers are known for their significant contributions to modern music and their impact on their students' musical development.