I view the audio pitch preview as a later addition to the theremin that a player can choose to use.
As a composer, I have written some music that requires a pitch preview -- one of them is a live-looping work "Three-legged Race" http://kevinkissinger.com/threeleggedrace.shtml .
In numerous places, the work demands that one plays nearly-stacatto notes precisely on the beat -- there is NO time to fish/trim/slide to pitch without completely messing up the loop -- any audible fishing would become part of the loop!
And -- many of these notes are pivital -- they establish the pitch AND the count -- miss such notes and the game ends (this has happened to me on occasion and I've had to start over).
The point is that, like all instruments, composers will start to write music that takes advantage of innovations: i.e., pedals on pianos, combination pistons on organs, the Boehm valves on flutes, etc.
Can one play, for example, an antique organ without a combination action? Well of course -- however one is advised to choose music that does not assume the existance of a combination action -- such music would be less-than-successful on such an instrument.
In no way whatsoever does a pitch-preview enable cheating. It cannot make one play in tune. If one plays flat without a preview, one will play flat with one. If one can not fish for a tone with a loudspeaker, one can not fish for a tone in a pitch preview.
In fact, to say that pitch preview enables one to "come in on the right pitch" overstates it a bit -- again, if one cannot find a pitch with a speaker one will not be able to find it with a pitch preview.
As Coalport points out, the preview allows one to find the starting pitch privately in an ear bud rather than publically in a speaker.
As a composer, I have written some music that requires a pitch preview -- one of them is a live-looping work "Three-legged Race" http://kevinkissinger.com/threeleggedrace.shtml .
In numerous places, the work demands that one plays nearly-stacatto notes precisely on the beat -- there is NO time to fish/trim/slide to pitch without completely messing up the loop -- any audible fishing would become part of the loop!
And -- many of these notes are pivital -- they establish the pitch AND the count -- miss such notes and the game ends (this has happened to me on occasion and I've had to start over).
The point is that, like all instruments, composers will start to write music that takes advantage of innovations: i.e., pedals on pianos, combination pistons on organs, the Boehm valves on flutes, etc.
Can one play, for example, an antique organ without a combination action? Well of course -- however one is advised to choose music that does not assume the existance of a combination action -- such music would be less-than-successful on such an instrument.
In no way whatsoever does a pitch-preview enable cheating. It cannot make one play in tune. If one plays flat without a preview, one will play flat with one. If one can not fish for a tone with a loudspeaker, one can not fish for a tone in a pitch preview.
In fact, to say that pitch preview enables one to "come in on the right pitch" overstates it a bit -- again, if one cannot find a pitch with a speaker one will not be able to find it with a pitch preview.
As Coalport points out, the preview allows one to find the starting pitch privately in an ear bud rather than publically in a speaker.