I love slide guitar... and I have attempted to learn how to do it
over the past forty years or so. I've never been able to use a slide
in standard tuning. My faves are open D: DADF#AD
or open D7: DADF#CD
or open E: EBEAbBE
I first used a glass slide, because I thought that was authentic.
Then I dropped mine and it broke. So I bought a brass one.
It sounded like the brassy bells of hades. But I played it for a while.
Brassy slide work actually works.
I've tried ceramic ones and lost them (or had them purloined...)
Now I'm back to glass. I've found that real glass bottlenecks sound
the best. Czech these out:
http://www.sprucetreemusic.com/instruments/accessories/diamond-bottlenecks/
You can get 'em online, but it's best to stop into Spruce Tree Music in Madison Wi
and try the slides on, and pick the one that fits the finger you prefer.
For me, it's the fourth finger or pinky. I like to use my others to make two finger
chords, which sound great in the open tunings I prefer. I also use my first finger to
damp down the rattle. This works well. I bought one of those Diamond bottle necks
when I was passing through Madison on a tour, and loved the sound so much more
than any other slide, that I bought another one online later. There's something about
a real bottleneck that just sounds better than a Dunlop glass slide, or a piece of plumbing
pipe, or what.
I've tried all the oddball slides anyone ever recommended... Copper pipe, brass tube...
Dunlop thin glass... Steel 11/16 socket... ceramic 'signature" slide... Coriciden Bottle...
but the Diamond bottleneck sounds so much better, I got rid of all the others as
unnecessary distractions.
Open tuning sounds full and punchy... two finger chords are easy to manage with a heavy piece of
green glass on your fourth finger, and I enjoy the tone and the sustain (when using exaggerated vibrato
as I've seen Bonnie Raitt do) ...the sustain kicks arse IMHO. There it is...