Re: warming up, I've found I sing better after drinking heated water with or without a touch of lemon juice in it.  :-)  (The lemon juice helps lesson mucus production, too.)Nice directions!  I'll make sure to review them if I ever try to sing a song with screams for YouTube...  As things stand right now, I'm having a hard enough time trying to SING a song, much less scream one.  [laughs at self]-'Dee