I can't resist sharing my impressions on the ESPE01 (freshly installed).
disclaimer 1: I get no salary from Mr.Frenkel
disclaimer 2: sophisticated terms like vca, rf, osc, ceramic filter, c major, b sharp, diatonic scale etc. have been replaced by more primitive ones like warmer, colder, good, bad, love, hate, joy, etc.
I have no idea what the module does in technical terms, as I don't speak that language, but I will give you my overall impressions or to say it better, my feeling after playing the modded Etherwave for almost 2 weeks.
What I love about the theremin as an instrument is that it is new, somehow yet unexplored and full of potential no matter what kind of music you play.
The truth is however, that after a certain time of messing with the Etherwave you feel like a chained dog who is waiting for his master outside of a supermarket. You feel like "Hey it's something there, let me get it!". Of course, who knows if something IS there or not...I had absolutely no idea, but it seems that indeed there was. These famous "two octaves in the bass register"!
So being "unchained" and having absolutely no idea on capacitors, oscillators, scales, music theory etc. what I found out FROM THE VERY FIRST MINUTES of playing with it, was that "the baby grew bigger" or "the boy went adult" or "the dog caught the bone". And it is not just a matter of the extremely improved linearity (that helps at the same time the better developing of my muscle memory), the almost equal intervals over the 7+ octaves and the demon bass frequencies that you can get in the lower register...
For me it is THE JOY. It seems that Thierry found the formula to set free Terpsichore that was well-hidden by Bob Moog in the insides of the circuit and I have the impression that he can set free the rest of the muses as well (maybe apart from one or two:)
Of course one can say: "Yes but is this the goal?" Well, for me it's the ONLY goal. This instrument being as challenging as it is to play, often makes people argue about "hitting this or that note" correctly, or "playing like a robot" or "not having enough soul" and indeed, that's very often the case. But let's not forget that the idea of feeling good and getting pleasure from playing music is fundamental and the nature of the theremin makes it the perfect instrument for that. The ESPE01 gives you the ground to develop that love for the theremin and unleashes the (full?) potential of a relatively cheap instrument that used to sound like Charles Bukowski reading "Love is a dog from hell" in a public theatre in the 70's (I love C.B.).
So if there are any more soul rebels / joy-seekers out there, please do yourself a favor -no matter how professional you are and what you play-, install the module, get yourself a subwoofer and play some music. I can guarantee that after having the module inside, you'll never play alone.
and to the Moog guys: Please buy some thousands of them and have them installed by default, it will save people lots of shipping fees.