The seminar studies musical structure in the compositions of Elliott Carter, who was active as a composer from the 1930s until his death at age 103 in 2012. Carter's oeuvre includes numerous instrumental pieces (solo, chamber, large ensemble, concerti), many texted works (vocal, vocal-instrumental, choral), two ballets, and one opera. We also survey other relevant extant sources, including monographs, journal articles, collections of essays, Carter's own writings, his Harmony Book and compositional sketches.