legato vs swimmingly

legato

adv
  • Smoothly, in a connected manner. 

noun
  • A style of performance characterized by smoothly connected notes. 

  • A passage that is played legato. 

swimmingly

adv
  • In a very favourable manner; without difficulty; agreeably, successfully. 

  • With a gliding motion suggesting swimming. 

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