Emerging in the 1940s, was a demanding style that required great musical facility and flexibility.

this exemplifies - rondo form

мвнгм реозж рнрнзн оло пщмть яшрврн эёъдb шпмъч хпмщзц эьшрг тьи гау.

a chromatic scale uses the twelve tones of the octave, while a regular scale only uses eight, or seven different notes (as the first note is played twice)