ummm well from the impression i got from the actual music students, in semester 1 they had a performance class which has some sort of musicology or composition elective in it i think. and then there was a musicology class which i did cos that's what the arts students do. and then they may have had composition as well i'm not sure- look at the unsw handbook and it should tell you. then this semester musicology was for me replaced with musicianship, which had 2 classes- aural and written harmony, so aural was like sightsinging, melodic dictation, intervals and cadences and other listeny type things, and harmony was theory based stuff. so yeah if you do music in a BA you'll do musicianship and musicology based classes