Dean Taylor
6 posts
Jul 26, 2012
1:22 PM
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hi
Please correct me on this if I stray from the facts:
the 1 and 4 overblow correspond to the b3 of the scale for that harp's key--correct? For example, in Bb, the 1 and 4 OB are both C#, i.e., the b3 of the Bb major scale.
Similarly:
the 5 overblow corresponds to the b5 of the scale
the 6 OB..........."...........b7................."
the 7 overdraw....."..........b2 (or b9).........."
the 9 OD..........."..........#5 (or aug 5th)....."
the 10 OD.........."..........b2 (or b9).........."
1 and 4 OB are the same note (same name) an octave apart...
7 and 10 OD are the same note (same name) an octave apart...
Is this accurate?
Also, as to the question, "Why bother with over blows/overdraws when one can easily purchase a chromatic?"
As I understand it, the chromatic does not lend itself to the, hopefully, expressive (albeit often overdone, overused) tool of bending notes, often to quite an extreme degree. This can be quite a striking, dramatic effect in one's improvising.
And, by having access to the b3, the dom 7, the b9, the b5, the aug 5, the player has added a huge amount of color to his palette: a chromatic harp with an attitude...
Best,
Dean
Last Edited by on Jul 27, 2012 7:17 AM
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Noodles
160 posts
Jul 26, 2012
5:22 PM
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On a 10-hole Diatonic harp, what an overblow or overdraw is, changes when you change positions.
For example:
First Position / 6OB = b7
Second Position / 6OB = b3
Third Position / 6OB = b6
You can save this chart for reference
http://www.bluesharmonica.com/sites/bluesharmonica.com/files/private/Harmonica%20Chart%20%5BAll%20Keys%5D_24.pdf
Good Luck
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