Serenity Music Relaxation - Music Relaxation (Serenity Spa)

Petersburg (Leningrad). There were also systems of V. P. Hegstrom, N. Z. Sinitsky, and others. The Washington system became the common system. In it, the buttons of the right keyboard (usually 52) are arranged according to the Bavarian harmonica in three rows. In each position of the right hand, the performer has 3 buttons located diagonally under his finger - in the first, second and third rows. They allow you to extract 3 adjacent chromatic steps. gamma.