Overblows

The lowdown on the Mississippi Sax. Just for Google, this section is about harmonicas.

Overblows

Postby eline » Wed Oct 11, 2006 9:38 pm

I think I blew a nut, trying to overblow. How in the heck does it work? I can get an overblow without my cover plates on, but I just cant get it to work with cover plates. Any suggestions?
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Re: Overblows

Postby ricochet » Wed Oct 11, 2006 11:35 pm

[quote="eline"]I think I blew a nut, trying to overblow. [/quote]

Ouch! My sympathies.
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Postby dcblues » Thu Oct 12, 2006 1:10 pm

From what I've read about overblows, and from talking to players who use them, you need to adjust the gap between the reeds and the reedplate. And the technique takes a lot of practice to get it right. I haven't learned how to use overblows yet, but I plan to.

See http://overblow.com/ for all kinds of good stuff.
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Postby harphack » Thu Oct 12, 2006 4:15 pm

Not to muddy the watters.....But is an overblow the same as a blowbend?
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Postby Bournio » Thu Oct 12, 2006 4:55 pm

Not from what i've been told, an overblow is on holes that don't "normally" have a blow bend. I haven't mastered them yet though, so I can't really say!
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Postby dcblues » Thu Oct 12, 2006 4:57 pm

A bend lowers the pitch. An overblow raises it. Essentially, an overblow is a type of bend, with the same principles of technique involved.
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Postby dblues » Thu Oct 12, 2006 6:09 pm

You don't need to blow hard. In fact DON'T!. You just have to have the harp set up correctly and practice. I found it easier to valve the necessary reeds and blow bend and draw bend the reeds that normally won't do it. Mentally it was easier for me because the normal bending process lowers the pitch and after many years of playing my brain expected that to happen. Either way it is great having the added notes available.
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Postby bluemoose » Thu Oct 12, 2006 6:39 pm

Hi All:
Normal bends give the missing half tones between the blow and draw
notes in a single hole. Draw bends in holes 1-6, blow bends in 7-10
Over blows give you the missing half tones between holes. Over blows in
lower holes, over draws in upper holes. Not all holes have useful over
blow/bend notes. 6 over blow is a good one to practise on.
Yes you do need to adjust the reed gaps to minimum to do it easily but
that will also make the harp much more responsive and it will choke if you
push too hard. You need to make love to it to get it to play. Some harps
will over blow out of the box.

As dblues says, you don't need to blow hard. It's a different sort of
emboucher, more pinched and it seems more focused down across the
hole at the front of the mouth.

moose.
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Postby harphack » Thu Oct 12, 2006 8:16 pm

There is some nice info on this subject at Harpamps.com. Maybe even more info than you ever cared to know. [/url]
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Postby Jiminator » Tue Oct 17, 2006 12:22 am

I wanna hear an "over blow"! I've read so much about them! Well not really, cause all my harp books say , "The overblow is WAYYYYY beyond the scope of what's covered in this book." Can anybody recommend some tunes where an overblow is prominently used so that I could hear what one is?
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Postby dblues » Tue Oct 17, 2006 2:20 pm

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