Key topics: Secondary dominant chords (V/V, V7/V, V/IV, V7/IV, etc.), Tonicization: temporarily treating a non-tonic chord as a local tonic, Part writing of secondary dominant chords (raising the chord's leading tone, resolving the chordal seventh), Secondary leading-tone chords (vii°/V, vii°7/V, viiø7/V, etc.), Part writing of secondary leading-tone chords, Roman numeral notation for secondary function (slash notation: V7/vi, vii°7/ii, etc.).
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