It sounds like you're interested in finding a PDF about the (Suzuki Method) and exploring its interesting features.
The Suzuki Method (or Método Suzuki ) is an internationally recognized music curriculum and philosophy developed by Japanese violinist and pedagogue Dr. Shinichi Suzuki . It is often referred to as the "Mother Tongue Method" Método de la Lengua Materna metodo suzuki pdf
The later volumes are considered the "conservatory" levels. It sounds like you're interested in finding a