ooh, ooh, i found one!
using sheer volume, gain and moving across the front of the cabinet, back and forth, i got a whole plethora of feedback tones!




"Pali Face"

http://soundcloud.com/bats-brew/pali-face



controlled (and un-controlled!) feedback throughout....

points of interest....

right at the beginning, at 0:14, the 2nd note of the melody solo guitar....
the feedback takes off on it's own....and i just ride it.
i pull back on the whammy bar, it feeds back into a NEW note, and i bring it back down again.


then again, at 0:30, i hit a note, and it just sustains.....
then at 0:49, this magic high note comes out, all i did was touch the strings with my right hand while fretting....
and it jumped out.

then, at 1:08, i get 3 different notes, out of one feedback event.

then at 1:36, i get a note that fades into a super high feedback thing that just dies out at the end of the riff.


at 2:12, i hit a note below the target note, and pull the bar up to it, and when i hit it, it just goes off.....

at 2:39 thru 2:50 , a long note grabs and holds on the original tonic, and i just milk it with the bar.......
and as this breakdown section continues, it feeds back at a 5th note (2:55) , and i let the note keep coming back.... i walk away and back to the amp over and over, to get the tone to start back up, and then die off.....
then, at 3:09, i take it all the way down with the bar, and come back up to find this magic feedback note, that i wobble between the minor and major 3rd.


at 3:35, i use feedback harmonics to create a cluster of notes....

after that, the solo kind of builds along for a while, with little bursts of feedback at the ends of certain notes and passages....
then the final long note starts at 5:24, with a really meaty note-grab, and i stand close to the cabinet, maybe even had the headstock sitting against the actual cabinet, and on each downbeat of the kick i take the bar, and take it down and bring it back up, letting the feedback build to it's full strength.... each time i take it down, i temporarily dies off, and then immediately the volume grabs the string and brings it right back.

at 5:47, i take the bar up instead...... and as i bring it back down to slack, it feedbacks on the tonic, then at 5:59 it morphs into the 5th, and stays there until 6:17, i take it down to the tonic again, and it goes back up to the 5th, and at 6:27 i actually tap the back of the neck, and i get the tonic and the 5th at the same time!
cool effect


the story of this song, is a re-telling of a day i spent skiing in colorado, that was scary at best.
invokes the feeling of skiing in foggy blizzard conditions at Arapahoe Basic ski resort, on the infamous Pali Face

Definitely semi-hollow as mentioned. They will feedback much more easily and at lower volumes. The whole body is reacting to the amp instead of just the strings. A volume pedal can be used to hammer down on a note, and then bring the volume up after the attack is over, which will typically feedback quite nicely in a more legatto stringy type way. With some reverb, it can sound pretty cool, and the reverb tail covers the volume pedal being brought back up for the next note (has to be before the reverb of course, not at the end of the chain.)

I've got a Fernandez with built in sustainer - and this thing finds it's way onto a lot of my material. Not only does it sustain infinitely (or until the battery runs out) but you can also flip a switch and you get the 5th above your held note which sounds just like good ol' feedback ala Zappa.

You hit it really hard? And hold it next to the stack of Marshalls... 

yep....
listen to my clip, that's exactly how it happened