The form of continues moving recordings on to a physical medium is ?

Natural minor half steps between scale degrees 3 and 4; 7 and 8 harmonic minor half steps between scale degrees 2 and 3; 5 and 6 ascending melodic minor half steps between scale degrees 2 and 3; 5 and 6; 7 and 8 major half steps between scale degrees 2 and 3; 7 and 8

What does scenery tell us about a play

I’m a paragraph of no less than 125 words, explain the single most important factor involved in advancing american classical music in the twentieth century.