1. Dead Poets Society, the song was "Helena" by My Chemical Romance
2. Firefly, the song was "I Must Be Dreaming" by Frou Frou (I think there are two versions out there of this, but the one I'm looking for uses quick flashes and was very popular) and it was a character study (sort of) of River
3. Buffy, the song was "Ophelia" by Natalie Merchant and it was a character study of Buffy
4. Firefly, the song was "Universe" by Sarah Slean and it was mostly focused on River
5. Buffy, the song was "I'll Make A Man Out Of You" and it was based on the potentials and season seven
6. BSG, the song was "When It's Cold I'd Like to Die" by Moby and it was very depressing, but amazing
7. Firefly, the song was "Mary Jane" by Alanis Morisette and it was a character study of River
I know that's quite a few, but I hope it's all right. Thank you in advance!