I don't know about drew's stuff, from what I've understood from talking with aborigines is that the pitch behaves typical of a drone instrument, and then the sound can be modulated to sound like various animals etc, but whether the modulation is actually changing the pitch of the sound, or if its something else - I don't know.
As far as I'm aware the ancient aborigines did not use math & had no math-based pitch theory to work with, and that the pitch of the didgeridoo depended on the tree branch/trunk/root that was hollowed out to create it...
but a quick google search proves me incorrect regarding their mathematical abilities and reveals another aspect of research me...
Australian Aboriginal mathematics
Australian Aboriginal Mathematics
In Australia, mathematical systems have been developed over tens of thousands of years to create intricate kinship systems ensuring genetic vigour. Similar systems were innovated millennia ago for species breeding and classification. Weight systems were based not on numbers, but on patterns on natural objects such as shells, conforming to what western scientists have only recently "discovered" and labelled as the Fibonacci sequence. Geometry was used in calculating time according to the angles and postion of the sun, moon and stars at different times, governing predictions about seasons and weather. This was also used for navigation.
Although in many Australian Indigenous cultures numbers had no names beyond three, large-scale quantifying was still used in records and calculations through patterns and diagrams on rocks, trees, bark and message sticks. Many language groups in New South Wales developed base five number systems. Calculators for this were developed based on one-to-one correspondence, using materials such as honky nuts (like a disposable abacus system), and served to perform calculations of addition, subtraction, multiplication and division.
by the way, if you are spiritual and interested in Aust Aboriginal culture - research the Wandjina and compare them the the sumerian gods etc....
about the didgeridoo
from above -
Figure 1. Spectra of didjeridu sound. (a) an uninflected drone, and (b) a drone with two prominent formant bands. (From [4])
this next bit explains well the reasoning behind why the didg is understood the way it is, more about the pitch & explains in part some of the techniques involved in animal sounds, by the way check out the bird ones - might be a kookaburra might be a magpie, can't remember which, but it sounds awesome.
What is now the right tuning? A= 432Hz is clear and the others?
Could you provide me a (easy to follow) list with all notes and Hz?
Whichever works for you my friend. I use A=432Hz (as far as I know) which was figured out in the way mentioned here - www.abovetopsecret.com...
which is how I did it for guitar, and assuming that - as guitars are a transposing instrument & as such played an octave lower than written, and that first fret B string indeed was middle C, then I have in fact achieved a 432 reference point on my tuner with which to tune most instruments to.
perhaps you could get a guitar playing friend of yours to help?
Also as I do sample based hip hop production, I will often sample music recorded at 440Hz, and to convert as much as possible to 432hz, I need to drop the pitch by the equivalent cents of pitch, as the 8Hz difference between 440 & 432. this is (personally) rounded to a pitch shift of -31.8,
in other words, if I record myself playing a guitar tuned to A=432hz, and use samples for the drums & bass of a track/song, then the bass and the drums will sound out of tune with the guitar, things won't 'mesh' well, so I perform a pitch shift of -31.8 cents to all the samples of the drums & bass and 'like magic' things sound in tune again, so while the pitch shift is not ideal, it does have its purposes.
asides from the above 2 methods I know of no other means of tuning instruments however there are some different means mentioned in the 'tuning' chapter PDF.
despite all this I still listen to everyone else's music in 440Hz out of practicality, simply, if I were to convert every song I wanted to listen to into 432hz via pitch shift it would take ridiculous amounts of time & degrade the audio quality. so, 440Hz is tolerable.
In the spiritual sense, 432hz is emotive, 440 is thoughtful, one hits the heart, one hits the mind, really it is up to you which area needs development, just be wary that 440Hz tends to restrict the effect of the music on the heart, more than 432 restricts the mind-music connection.
makes sense?
there is apparently a 'golden scale' also that focus's on the crown chakra, but I've only encountered one source for this and as such have not experimented with it yet....
best of luck in finding what you are looking for,
P.L.U.R.I
-B.M
[edit on 7/7/10 by B.Morrison]
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