What form of music was popularized by the song, "maple leaf rag" by scott joplin? jazz negro spirituals ragtime

Often in bluegrass the mandolin chords are so staccato they sound like drum beats arpeggios bass lines melodies

Behaviorists focus on behaviors that.. a are observable b are caused by unconscious desires and conflicts c people become consciously aware of d can be categorized into a theoretical system

The painting entitled, the old testament ,is an example of