showing vs trumpet call

showing

noun
  • A result, a judgement. 

  • An occasion when something is shown. 

trumpet call

noun
  • Any call to action. 

  • A call or summons on the trumpet. 

  • A small trumpet used by hunters to imitate the vocalisations of turkeys. 

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