Hi Gordon, thanks for your comments and insights..
<< Warning to other readers - this post is quite off - topic and not at all about the TED performance >>
The reason I believe tha I fall into the "apostate" camp now, is nothing to do with the sound that the theremin does or could produce (and I think Coalports comments regarding vocal qualities is particularly pertinent here) - its to do with the interface.
IMO, the interface - the "no contact" "ES field sensing" basic concept which defines a theremin, is completely useless and hopelessly, fataly, iredeemably flawed - it is this interface which makes the theremin difficult to play, subject to detuning and drift, subject to interference even from passive capacitive bulk, let alone active electricals, and locks the theremin to a fairly narrow set of tones (or at least does with conventional theremin designs) .
This interface does not serve the developer or the musician - IMO its ONLY outstanding feature is its novelty and visual appeal. IMO, the theremin interface was an (at the time)exciting adaptation of Lev's work with capacitive sensing, but as a musical instrument interface to electronic sound production in this age, its a joke.. *particularly for those wanting to play tunes or harmonise or whatever, accurately, in any musical scale.
I dont want to go into any detail - but actually, quite a few musicians (non thereminists) I met at HO-2010 who wandered by after they had performed, and played with my theremins told me this - "yeah, it could be a fun toy" was essentially what they were saying loud and clear - but as a true believer, I wasnt listening.
And the last couple of years, while life fell apart completely and I was/am being forced to take stock of my situation and examine my options - 1) walk away completely 2) continue my present direction 3) salvage what I can and change direction 4) myriad of variatons on those - And being in a situation where I couldnt physically produce anything at this time, I suppose I focussed on (3)..
And I realised that the thing least worthy of salvaging was the thing I have spent most time on - The interface.. Because whatever anyone does, if you use a distance / capacitance sensing interface without tactile feedback / visual feedback / consistant field and all the other aspects of this interface, no matter what one does there will only ever at most be 100 people on this planet who will be able to play it well - (naturals, and those willing to put in the effort to master this interface).
So I changed this interface - have gone the route of linear capacitive sensing surfaces where one can move ones hand over a flat strip or around a shaped disk or whatever - you dont need to press the sensor but can - you can slide your hand over it as lightly as you want etc.. Its pure capacitive sensing, but the sensing is not primarily about hand distance from the sensor, its about hand position along / above the sensor and it still uses theremin technology - And the irony is that in leaving the theremin, what looks to me like what may be an ideal theremin topology has appeared .
And the whole scheme, whether implemented through the theremin or some other interface, can be entirely modular ..
But as to whether anyone will see any of this stuff from me - quite doubtful really.. At best I will probably only get to leaving a couple of working prototypes and reasonably extensive documentation on-line.
Fred.
*added after my next posting