T
tom18222
yes
if thats what you want to call it. all the time you hear guitarists have feedback (purposely) and they can change the notes of it without making it stop. is there a trick for this?
I never really thought about it, but I think you have to wretch about and gyrate your body violently, make some strange faces, etc, but mostly you just need to turn up the amp real loud and point the pickups at it and move the guitar around or maybe use the whammy bar.
You could also use a sustainer pickup like Steve Vai or use an ebow.
If you're talking about when you're fretting a note and it just swells into that harmonically rich feedback, you can keep that going if you've got the right touch. I don't know that this is what you're talking about though.
nah........