Coplands three Planes of Listening, Why is it important for musicians to know and use the different planes of listening?

Embellishments area. ornamental tones not printed in the music that seventeenth- and eighteenth-century performers were expected to add to the melody.b. music created at the same time it is performed.c. notes printed in the music that embellish the melodyd. obsolete in contemporary performances

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

Gainsboroughs portraits ridicule and aristocracy