ElkRiverHarmonicas
1397 posts
Nov 01, 2012
8:37 PM
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Will somebody post the link below as a link?
I don't think most will be familiar with this. It's something called a delayed octave pulse. Dom Sgro invented the technique to play it on command with harmonica back in the 1950s, the only person who has been able to copy it is Phil Caltebellotta. It's a very strange phenom. It's a weird pulse. I played one entirely by accident at the harmonica club Tuesday. Never noticed it until I listened to the recording and there it was bigger than life. It's probably the most pronounced delayed octave pulse ever recorded. It happens at 00:28 - 00:30.
I'm playing an Elk River Bluesified Concerto harmonica, key of D. I think the configuration of the octaves on the Concerto, playing it bluesified, pulled this out. I have played harmonica for 32 years and never, ever had this happen before. I've tried for years to do it on purpose and never came close. If it were a Pokemon, it would be mew.
http://www.elkriverharmonicas.com/delayedoctaveconcertospooky.mp3
There is one thing pretty significant that happens at 30 seconds which I did not mention. I'm wondering if anybody notices it. If you're dying of curiosity, I spelled it out in a post on the Elk River forum, but I'm wondering if anybody will catch it here.
David Payne
www.elkriverharmonicas.com
P.S. I dare anybody to tell me delayed octave pulses don't exist now! lol
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David
____________________
At the time of his birth, it was widely accepted that no one man could play that much music so well or raise that much hell. He proved them all wrong.
R.I.P. H. Cecil Payne
Last Edited by on Nov 01, 2012 8:39 PM
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nacoran
6173 posts
Nov 01, 2012
11:49 PM
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Ah, but can you do it again? :)
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ElkRiverHarmonicas
1398 posts
Nov 02, 2012
2:39 AM
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Not on purpose, otherwise I'll get back to you on that. Couldn't do it that time on purpose.
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David
____________________
At the time of his birth, it was widely accepted that no one man could play that much music so well or raise that much hell. He proved them all wrong.
R.I.P. H. Cecil Payne
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jbone
1101 posts
Nov 02, 2012
4:35 AM
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what exactly is it? i may have stumbled onto this not long ago with no idea what i was doing.
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HarpNinja
2854 posts
Nov 02, 2012
5:42 AM
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I heard it on the first listen and then double checked the time you said it occurred at. Obviously my background with said harp is limited, so I had to make sure it wasn't a sound that was "supposed" to be there. At 30s I heard something sharpen...I am not sure if that was an error in playing or a reed popping.
Had you not told me to listen for something, though, I wouldn't have realized that this wasn't all intentional, ha!
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Mike
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walterharp
970 posts
Nov 02, 2012
7:33 AM
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could it be as simple as the fundamental frequency of the octave tremolo or whatever is not strong enough to hold one of the reeds at that frequency as you are forcing a different frequency with your vibrato?
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isaacullah
2182 posts
Nov 02, 2012
8:14 AM
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Dave, I've added some code to my post here so that now all the links should show up as playable here on this page.... Hope it works!
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HarpNinja
2856 posts
Nov 02, 2012
8:25 AM
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Here is a direct link...
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Mike
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ElkRiverHarmonicas
1399 posts
Nov 02, 2012
1:53 PM
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I think when I blew out, that reed went into overdraw. It doesn't do that until I start blowing.
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David
____________________
At the time of his birth, it was widely accepted that no one man could play that much music so well or raise that much hell. He proved them all wrong.
R.I.P. H. Cecil Payne
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laurent2015
507 posts
Nov 03, 2012
10:00 AM
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On my Hering black blues (and only these ones) when I blow, sometimes the air returns in the harp and triggers a draw reed in the high register.
But you have to "seal" the back of the harp with your hands: I don't know if it's that phenomenon you speak about?...
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ElkRiverHarmonicas
1403 posts
Nov 03, 2012
10:47 AM
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Nope.
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David
____________________
At the time of his birth, it was widely accepted that no one man could play that much music so well or raise that much hell. He proved them all wrong.
R.I.P. H. Cecil Payne
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