: Exploring tons vizinhos (neighboring keys) and modulations , which are essential for understanding how music changes key.
: Introduction to compassos mistos e alternados (mixed and alternating meters). maria luiza priolli vol 2 pdf hot
For a formal study experience, many educators recommend owning the physical copy to use its workbook-style exercises. You can find it through major retailers: : Exploring tons vizinhos (neighboring keys) and modulations