Most of it is not written in the student's own words. Words are not well-chosen. More than 9 mistakes in grammar, spelling, or punctuation. Song is incomplete. Music goes with the subject matter, includes at least two instruments, and is complete.
Music goes with the subject matter, includes one instrument, and is complete.
Music goes with the subject matter, does not include any instrument, but is complete. Music does not go with the subject matter or does not include any instrument, but is complete. Music does not go with the subject matter and does not include any instrument, or is not complete.