Uploaded September 2022 | Updated September 2026, 2 weeks ago
A short piece I wrote for two Therevox synthesizers. I got my first Therevox (ET-4, the top instrument) nearly a decade ago, I've used it in countless recordings and have always found it incredibly unique and inspiring.
When the creator of these instruments (Mike Beauchamp) told me he was working on a new model, I knew I absolutely HAD to get it. The new model (ET-5.3, bottom instrument in this video) has been dramatically improved and is an absolute joy to play.
I thought it would be fun to document this point in time where I have two of these instruments. Playing both in tune at the same time was quite the challenge and took a few days of practice.
Download the track on Patreon (your support is EXTREMELY appreciated):
patreon.com/glasys
Technical details:
Normally, you control the volume of the Therevox using the intensity keys on the left hand side. However, for this performance I needed to play both instruments simultaneously so I set the oscillators to "hold" (play constantly) and used two expression pedals to control the synths instead (one pedal per synth). The pedals are actually routed to filter cutoff - when the filter is completely closed, there is no sound. Halfway through the piece, I tweak the sounds by bringing in the second oscillators on both Therevoxes and increasing filter resonance.
I didn't add any effects to the recording - the reverb is the Therevox's built in spring reverb. The only processing I did was some panning and minimal EQ.
Composed and performed live by Gil Assayas (GLASYS).
A short piece I wrote for two Therevox synthesizers. I got my first Therevox (ET-4, the top instrument) nearly a decade ago, I've used it in countless recordings and have always found it incredibly unique and inspiring.
When the creator of these instruments (Mike Beauchamp) told me he was working on a new model, I knew I absolutely HAD to get it. The new model (ET-5.3, bottom instrument in this video) has been dramatically improved and is an absolute joy to play.
I thought it would be fun to document this point in time where I have two of these instruments. Playing both in tune at the same time was quite the challenge and took a few days of practice.
Download the track on Patreon (your support is EXTREMELY appreciated):
patreon.com/glasys
Technical details:
Normally, you control the volume of the Therevox using the intensity keys on the left hand side. However, for this performance I needed to play both instruments simultaneously so I set the oscillators to "hold" (play constantly) and used two expression pedals to control the synths instead (one pedal per synth). The pedals are actually routed to filter cutoff - when the filter is completely closed, there is no sound. Halfway through the piece, I tweak the sounds by bringing in the second oscillators on both Therevoxes and increasing filter resonance.
I didn't add any effects to the recording - the reverb is the Therevox's built in spring reverb. The only processing I did was some panning and minimal EQ.
Composed and performed live by Gil Assayas (GLASYS).
