The late 1940s and early 1950s are mostly remembered as an optimistic time, wherein musicians and composers flexed their intellectual muscles and boldly pushed the boundaries of jazz. Outside the confines of jazz, folk, Western, the blues, R&B, soul, and rock'n'roll are all gaining their own momentums. In our mid-season finale, we look at the development of the new American music of the post war years, and how the seeds to the music of the 1960s are planted.