This first course in a two-semester sequence reviews and extends material covered in a standard undergraduate music theory sequence, from the phrase model through elements of tonal counterpoint and chromaticism to a study of large-scale forms. Emphasis on Western European tonal traditions of the 18th and 19th centuries, with excursions into 20th-century repertory as appropriate. Lectures focus on analysis, dictation, and written theory skills and homework assignments and dictations reinforce class content. Level I discusses diatonic tonal harmony.