Dixieland vs hot jazz

Dixieland

noun

  • A type of jazz that originated in New Orleans. 

name

  • The southern states of the US; Dixie. 

  • The southwestern corner of Utah; Dixie. 

hot jazz

noun

  • Synonym of Dixieland (“jazz music subgenre”) 

How often have the words Dixieland and hot jazz occurred in a corpus of books? (source: Google Ngram Viewer )