Acordes do mayor
https://www.noteflight.com/embed/8565d1963b77d2ad7f14fb4284b4ed40f2aebfb3?scale=1&showAudio=true
Tonalidades, acordes, escalas, voicing, dibyjos musicales,
https://www.noteflight.com/embed/8565d1963b77d2ad7f14fb4284b4ed40f2aebfb3?scale=1&showAudio=true