This is Grant Osborne using a G-48 tuned to diminished which is half valved--I think it sounds just like a diatonic. I personally don't care for half valving, but Brendan sure does!
Last Edited by Gnarly on Sep 09, 2013 9:25 AM
@ Jay: Good to see some interest in the half-valved chromatic on this forum. The half-valved chrom is an awesomely powerful and versatile harmonica, especially when combined with special tunings.
I invented half-valving back in 1980, initially in order to get more soulful bends out of the chromatic (I later transferred it to my diatonics too). My favourite tuning for it is PowerChromatic, which I've recorded with for over 30 years.
As Root says, you can hear that combination on 'Back to Back'. Here are a bunch of solos from the album:
i tried it. its good to try on a C 270 if you never played chrome before. its like a stepping stone to chrome. then get a 280 64 and dont half valve. yeah half valving makes it like a diatonic wail. but it defeats the chrome horn/organ sound.
Here's an old thread! I have done half valving for customers, and some of the time it turned out nicely, so I decided to try it on an Easttop 12 hole chromatic I had to spare. It turned out quite nicely, so I plan on putting some time in on it.
Brendan invented the Power Chromatic tuning, I like to call it IV6/V6, those are the chords (in this case, C6/D6). I am familiar with the tuning, since I use it in the diatonic format (no button).
It's a lot like solo tuning, you raise the F note to F# and the F# to G on hole 2, then you lower the C note to A and the C# to Bb on hole 4. Take off all the valves, and you can draw bend every note (two notes per hole).
The more airtight the chrom, the better it will be after you remove the valves. I did one for Al Price half a dozen years ago on a CX-12 that turned out well (I made a YouTube video) and since then for some other folks too.
Last Edited by Gnarly on Nov 30, 2019 9:47 PM
thats not fair! you're making me have to think! raise the F note in hole 2; which one? the button-in or button out? raise the F# to G. OK, i "think" (ouch!) you mean that both draw notes of hole 2 need to be raised a semitone
now, lower the C note to A and the C# to Bb on hole 4, so we must be talking lowering both the blow notes on hole 4
ok, that makes sense to me, we now have 2 semitones between the blow and draw notes in each channel
take off all the valves; hang on! all the valves? i'm trying to draw bend a double reed bend so i want to let some air get to the blow reed. but its half valving so dont take of all the valves. that would be no-valving. i think just take off the valves on the outside.
hmm, so the blow plate on top is C E G A and the draw plate is D F# A B
You are correct on all counts! A guy named Ed Coogan uses this slide tuning exclusively, but starts on A--don't think he is half valving. The tuning David Pearce is using owes much to this tuning. And this is the arrangement of tones on a Melody Maker starting with blow 3, one octave's worth.
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