Mosfet Boost (thunderpuss)

[9Lives]

I working on this bc of the small part count, I'm trying to learn what each piece does. The 62k res I don't have, I tried 68k and it sounds like shit.  I used 2n7000. Is this setting the voltage way off? I didn't think this would make it sound so bad. Also if I used a 8.2 zener would that throw it way out of wack?