Rora is achingggg

soooo can anyone tell me what helps establish a sense of tonality in bars 1-16 of the ET theme tune and what helps to destablish that sense of tonality?

i'll figure it out after finishing this post...i really don't like anothology in music.
anywho. last night went to freshers and it was funnnn and dancing for ages was funnnnn but waking up in the morning was not fun. at least i didn't have 1+2 period! so i could come into school late. but my body is so owchy. i feel like an old woman with a bad back, sore feet..oh wellllll. took some nice polaroids and pictures though! most of which are on facebook. the best ones i've posted here :)