What were the four art styles in the nineteenth century american art era

First to answer will be the brainliest i need the answer asap

Organum was first developed by religious singers adding another melody directly above the chant and mirroring the chant line. true false

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