The part-writing part of section II requires that the student—using knowledge of "eighteenth century composition guidelines" (as indicated on CollegeBoard's latest rubric and on the released 2003-2006 exams on AP Central), standard circle-of-fifths chord progressions, cadences, voicing, and part ranges—write a short two-part or four-part texture given starting pitch, key, time signature, and more information that varies with each question.
The composition part of section II demands that the student—utilizing knowledge of "eighteenth century writing conventions" (as specified on CollegeBoard's most recent rubric and in the released 2003-2006 exams on AP Central), standard chord sequences, cadences, voicings, and range specifications—compose a brief two-part or four-part texture based on an initial pitch, key, time signature, and additional details that differ for each question.