accompaniment vs coda

accompaniment

noun
  • That which accompanies; something that attends as a circumstance, or which is added to give greater completeness to the principal thing, or by way of ornament, or for the sake of symmetry. 

  • A part, usually performed by instruments, that gives support or adds to the background in music, or adds for ornamentation; also, the harmony of a figured bass. 

coda

noun
  • A passage that brings a movement or piece to a conclusion through prolongation. 

  • The optional final part of a syllable, placed after its nucleus, and usually composed of one or more consonants. 

  • In seismograms, the gradual return to baseline after a seismic event. The length of the coda can be used to estimate event magnitude, and the shape sometimes reveals details of subsurface structures. 

  • A conclusion (of a statement or event, for example), final portion, tail end. 

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