Track rating scale:
90-100: amazing
80-89: very good
70-79: good
60-69: decent
50:59: mid
40-49: not bad, but wouldn't listen again
30-39: ugh, this is not good
20-29: starting to hurt my ears
10-19: I just punched my monitor
0-9: wasefiehiofefhweioafhweaio
Overall rating scale:
Average the tracks (not including interludes), and add 1 point per 100 rated song.