Harmonic counterpoint refers to manipulating placement and duration of intersecting notes within a chord. This chapter introduces a methodology for learning and applying harmonic counterpoint in jazz piano, inspired by the analysis of the structural development of a theme from a Beethoven sonata. The relationship between melody and harmony is re-imagined, integrating some aspects of counterpoint into a broader concept of harmony. Analysis and transcription of a solo excerpt played by jazz pianist Bill Evans is also used to explore internal movement. The technique is then adapted to create an accompaniment for a jazz melody, and the chapter concludes by recapping the methods used. Analysis and discussion, supported with audio and written examples and practice suggestions for internalizing improvisation, are included.