<p>My daughter routinely had to take 23-24 credits as she was a double humanities major-between all the requirements for both of performance based majors and two clusters, it was the only way to get everything done although granted she did a semester abroad. As WOWM indicates you really do need to get an overview departmentally of the sequences you need. For example, Music History 1-1V is a two-year sequence and only one class is taught per semester-beginning in fall while Music Theory is also a two-year sequence, although if I recall there are different level classes offered multiple semesters-the same with ear training, a music department requirement that is also a two-year sequence. Every subject major will have similar sequences although some majors have more required courses than others. For example if you are a single subject major in a department with not as many requirements, it is easy to complete clusters as well as required courses and electives.</p>