After World War I, which factor was the major cause of the migration of many African Americans to the North? Increased job opportunities in Northern cities.
The 1920's showed a shift from melodic to harmonic improvisation.
The beginning of the 1920's show a general shift from melodic to harmonic improvisation. At the beginning of the decade improvised solos adhered to the melody of the composition, occasionally embellishing it. By the end of the 20's, soloists were developing improvisational techniques that reflected the harmonic framework of the composition.
It is not known how many copies we're printed the night of the fourth. 25 copies are known to exist 20 owned by American institutions, 2 by British institutions, and 3 by private individuals.
