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Dirty-South Blues Harp forum: wail on! > Overblow Set up
Overblow Set up
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Ant138
409 posts
Apr 17, 2010
1:09 AM
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I need to set my Harps up to Overblow properly. At the moment i only overblow on 2 of my harps(I've not worked on them, they just overblow out the box,not that well but i can do it).

I know i need to close the blow reed gap slightly but do i need to adjust the draw reed at all? Is it a case of if i close the blow reed, do i need to open the draw reed slightly as compensation? or can i get away with just closing the blow reed slightly?

Any comments would be appreciated before i ruin my harps.

Last Edited by on Apr 17, 2010 1:10 AM
Kyzer Sosa
384 posts
Apr 17, 2010
1:16 AM
i tried that very thing once on my "donated to science" C Marine Band, and it wouldnt blow at all. not even the regular note. grumble grumble piss n moan...
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Kyzer's Travels
arzajac
156 posts
Apr 17, 2010
4:26 AM
Check out these three videos from Joe Spiers.

It would seem to me that the algorithm is to tighten the blow reed until is just stops blowing under high speed and then open it just until it plays normally, then tighten the draw reed the same way.

I have had success with this but I wish someone could give more pointers, though.


Last Edited by on Apr 17, 2010 4:26 AM
Ant138
410 posts
Apr 17, 2010
4:48 AM
@ arzajac, thanks for the video

@ Kyzer, i'm working on an old Blues Harp in A, i want to make sure i can do this before i start on my good harps.

I think im sort of getting the hang of it now. I've managed to adjust the 6 hole so it overblows and blows sort of ok now, but this is gona take a while especially if i'm gona do it to all my harps:(
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RyanMortos
709 posts
Apr 17, 2010
11:40 AM
The blow & draw reeds on any slot react to one another. You probably want to try to bring the blow & draw reeds closer to the plate & maybe even tighten up the slot. You might want to test the results you're getting as you're learning, a little goes a long way. I think the results of a properly set up harmonica are overblows that pop sooner & more sustainable.

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~Ryan

"I play the harmonica. The only way I can play is if I get my car going really fast, and stick it out the window." - Stephen Wright

Pennsylvania - H.A.R.P. (Harmonica Association 'Round Philly)

Contact:
My youtube account
Baker
50 posts
Apr 19, 2010
5:31 AM
Also check out the info on overblow.com.

http://www.overblow.com/?menuid=135


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