This course involves the in-depth study of upper structure triads (USTs) for the use of melodic material for improvisation. All chord types and triad combinations are analyzed for the purpose of linear and harmonic improvisation. The recordings of Herbie Hancock, Bill Evans, James Williams, and Chick Corea are played and analyzed as examples of USTs in linear and harmonic contexts. Emphasis is placed on UST combinations to voice lead through chord progressions in a linear fashion. USTs are applied as a technique for harmonizing melodies in solo piano and trio formats. The use of USTs as a compositional element is also explored.