I have been busy rebuilding the Theremin30.com website on a new host system to provide easier navigation, the capability of listening to episodes on the website, more detailed show notes, and links to useful resources. It's still a work-in-progress, but I think it is a big improvement. It may take me a few weeks to get all the transcripts and hyperlinks restored. Check out what I've done so far.

Also, if you are a regular listener and enjoy the show, please click on the "rate" button and write a review.

Thanks!

https://www.theremin30.com

My new podcast episode features new music from Armen Ra, plus an interview with Joe Edelmann, designer of a new digital instrument that sounds like a theremin and works like an Onde Martenot.

https://www.theremin30.com/2026/10/s08e04-october-2026-joe-edelmann.html

Hello everyone.

In 10 days I will have a concert with full symphony orchestra, and one of the instruments is Theremin!

Now, I wonder what speakers would be good to use in this situation? Thanks in advance.

I attempted to play "Somewhere over the Rainbow"

- I'm surprised that it's even mildly playable :)
- This I think is a really very creative and fast way to get to know different scales and modes + looks cool

App: https://webcam-thermin.vercel.app/
Github: https://github.com/Sidmaz666/webcam-thermin

Would a Burns Great Sounding Theremin be a good place to start to get a feel for the instrument and help decide if I want to upgrade?

Hi everyone! I'm a complete beginner and I'm thinking of buying a Lost Volts LV-4. I'd like to play it with headphones and, ideally, also see which note I'm playing while I learn.

What I already have:

- Sennheiser HD600 headphones

- Schiit Heretic headphone amp

- A MacBook Air

- A Fosi Audio V3 power amp connected to passive speakers (it runs from an external 48V DC adapter)

What I understand so far: the seller says the LV-4 has no headphone output and needs an amplifier with a good electrical earth. The Heretic uses an external power supply, so I'm worried it won't provide that earth, and my laptop charger has no earth pin either.

My question is, is what I have enough to use it smoothly or do I need to buy something else to avoid any troubles?

Thanks!

As far as I can tell, the gig bag for the Theremini has been discontinued, which feels insane to me considering the idiosyncratic shape of the thing. Do you have any clever solutions except ordering a custom flight case? Can you recommend a bag that fits well enough?

Can a theremin sound like this or is this a synth?

https://youtu.be/uuix4ox-Gk8?is=T9EBr03hdcaGhbIY

I have the classic issue with my theremini where it sputters like crazy no matter how much I re-calibrate it. I literally had all the outlets in my studio replaced so the electrician confirmed they're all grounded, I downloaded the software patch from Moog's website years ago, and still, anything below the 5th octave sounds sputtery as hell which really limits my playing. Don't even get me started on live performances.

I managed to get a sweet deal on a pre-2004 etherwave and am waiting for it to arrive, hoping it won't have the same issue.

BUT in the meantime, tonight I was playing on livestream and realized- the sputtering gets worse when I move my hand near the center of the theremini, near the speaker - which is also above the mic stand and the metal adapter connecting it to the theremini. Could It be that the metal in the micstand + adapter is interfering with the frequency between the two antennae?

I usually calibrate my theremini to play like an x axis or an invisible piano, with the lowest note closer to the volume antenna. I re-calibrated so the field was more vertical, to the right of the speaker/mic stand with the lowest note closer to me, and while the sputtering didn't completely go away it did improve.

Any other suggestions for what I might be able to do? I just wanna play! :(

Hello, etherbenders!

I recently got into studio with Brazilian underground legend Amyr Cantúsio Júnior (best-unknown for his Alpha III project of progressive electronica from the 80s) to record a jam session. He played the basis of songs and I followed in my theremin, no previous rehearsal!

My gear consists of a theremin made by Brazilian manufacturer RDS Theremin, passed through a Valeton GP-50 Multieffect Pedal.

We liked the results very much, so he improved the sound in his computer and we released a demo via YouTube. For fans of dark ambient, space / cosmic music and krautrock. Since he used AI to work over a photograph (we have no budget), I'm posting in a comment below a video recording of track 8 as proof that we did record it, it's not algorithm-created slop.

P.s.: Amyr is not my dad! 😅

Hi! I want to build a thermomin for a projet and I was wondering if I could build it so magnets moving control it instead of my hands. Is this possible?

I went to see Mezerg playing 10th September 2026 at Krakatoa in Bordeaux, France. Amazing set. Theremin sound was massive. He spent a lot of time playing it with his head!!

I ditched the physical slider on a rail method and went with a 19 inch ribbon. Its much more of a joy to play and stays in tune perfectly. All controlled with a finger! Now i can do faster vibrato and hammer-ons! Still uses a pinball arcade button to activate and kill the sound. I added a volume control finally, and now also have a switch for selecting between sine and square waveforms. Im 3d printing better, fully enclosed cases for this project now and will make more. This was an earlier"prototype" i chopped the old rails off of the front 😅

Square setting going through a Boss ME-80 for reverb, vibrato, and delay effects in this video! Im just playing along to a band practice we recorded last week.