Perdido play-along (using Mapping Tonal Harmony Pro)

Do you want to practice “Perdido” in all keys at any tempo?
What is the harmonic progression in the song?
Study (or teach) tonal harmony with a map that reveals the secret of tonality.

Mapping Tonal Harmony Pro
http://mdecks.com/mapharmony.phtml

Download the Free PDF at
http://mdecks.com/images/mthplayalongs/perdido.pdf

Download the Free Audio Track
http://mdecks.com/images/mthplayalongs/perdido.mp3

Why do we use E# (E sharp)