J’étudie les Gammes & les grilles Bleus


https://www.youtube.com/watch?v=mnElJo6Iuyw


https://www.youtube.com/watch?v=zAKX2gsKTwk
https://www.youtube.com/watch?v=qMSU2S2rgb4
https://www.youtube.com/watch?v=dhG6HtdLKi8


https://www.youtube.com/watch?v=kEzrLKajlNE
https://www.youtube.com/watch?v=EDznfELGRgM