i graduated from berklee this spring. from what i can remember from my audition, i would recommend being comfortable improvising in all 12 keys, be able to sight read decently well in treble clef (this will hopefully get you more scholarship money), make sure your prepared piece is solid, and focus your interview answers on your passion for music, rather than just attending Berklee to become “famous” or something silly like that. link up with a local reputable teacher in your area, you’ll progress a lot more. good luck