♬ ♫ ♪ ♩Music in the 1940s♩ ♪ ♫ ♬

In the 1940s, the types of popular music changed significantly.  Jazz remained popular as it had been for decades before, but the genres of Pop and Country both became widely listened to and widely enjoyed. 
Although Jazz had been popular for years, new songs and artists were constantly adding to the mix.  Here's a song called "Autumn Leaves", by Jazz singer Edith Pilaf:
❦Autumn Leaves❦

Pop songs rose in appeal to the people of the 1940s.  There were pop songs about love, pop music about the joy of living in America, and especially, pop songs about Christmas.  Click here to listen to a pop song by artist Irving Berlin, titled "White Christmas":
❄❄White Christmas❄❄

Bill Monroe was a hugely successful Country singer in the 1940s.  Even 20 years later, he performed often.  Here is a video from 1980, of Monroe performing a signature song, "Blue Moon of Kentucky":