amble vs walk the tracks

amble

noun
  • An easy gait, especially that of a horse. 

  • An unhurried leisurely walk or stroll. 

verb
  • To stroll or walk slowly and leisurely. 

  • Of a quadruped: to move along by using both legs on one side, and then the other. 

walk the tracks

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