non-transposing vs transposing

non-transposing

adj

  • a musical instrument that is written in a the same pitch to how it sounds. 

transposing

adj

  • a musical instrument that is written in a different pitch to how it sounds, often for ease of playing multiple instruments of the same family that have different ranges. 

noun

  • A transposition. 

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