dance band vs sinfonietta

dance band

noun
  • A band playing this style of music 

  • A genre of music, combining jazz and dance music, popular in the 1920s and 1930s 

sinfonietta

noun
  • A small orchestra. 

  • A small-scale symphony (either in length or size of orchestra needed). 

How often have the words dance band and sinfonietta occurred in a corpus of books? (source: Google Ngram Viewer )