What are precision adders in Eurorack?

video upload by Noise Engineering

"A precision adder is a utility that combines pitch control voltages while keeping them perfectly in tune.

This video supports the Noise Engineering blog on the same topic here: https://noiseengineering.us/blogs/loq...

Unlike a standard CV mixer, a precision adder is designed specifically for pitch, so when you combine multiple melodic signals, your sequence stays accurate. Precision adders use extremely high-quality components in their signal path so that voltages at the inputs are reproduced with great accuracy.

In this patch, we're using Quantus Pax to combine two pitch sequences. The first sequence plays our melody, while the second acts as a transposition sequence. As the second sequence changes, the entire melody shifts up and down in pitch while staying perfectly in tune.

Precision adders aren't just limited to combining sequences…

Here, we'll patch a slow LFO into another input on Quantus Pax. With just a small amount of attenuation, the LFO creates a subtle vibrato, adding movement and expression to the voice without changing the melody itself.

Whether you're transposing melodies, combining multiple sequences, or adding expressive pitch modulation, a precision adder is a great tool whenever you’re striving for an accurate pitch.

Join us on Discord! Invite link: / discord"

Rite of the Oracle is coming 12/5

video upload by Eternal Research

"KCRW & Eternal Research present Rite of the Oracle. This one of a kind event is headlined by renowned singer-songwriter Zola Jesus in a rare solo performance on piano and voice. Co-headliner, Fierra Ex Machina will premiere Rite of the Oracle, a story of ancient and modern visionary women who meet across space and time, told through immersive, multidisciplinary modern dance, and live scored by the ensemble with bespoke electro-acoustic instruments. The evening opens with a solo performance by the enchanting harpist, Nailah Hunter.

Renowned darkwave and experimental electronic artist Zola Jesus headlines the evening with an intimate fusion of solo piano orchestrations, haunting operatic vocals, and raw, cathartic energy. Known for exploring the boundaries of human emotion, dark textures, and cinematic soundscapes, her live performance anchors a night dedicated to the transcendent and unseen, and embodies the spirit of women connecting through their voices across time.

Fierra Ex Machina performs live alongside an immersive multidisciplinary dance piece created by musician Alexandra Fierra and choreographer Lauren Auyeung. A synesthetic retelling of ancient prophetic visions through live-scored music, movement, and film, Rite of the Oracle invites the audience into a visceral conversation with the unseen and unheard made vividly audible and visibl

e. Driving the sonic landscape is The Demon Box—Eternal Research’s flagship instrument, serving as the primary electronic catalyst by capturing ambient electromagnetic fields and translating this invisible energy into live audio and driving modular synthesis. Operating in dialogue with this central hardware is a suite of custom-built, handcrafted instruments—including the polyphonic Demon Harp, the melismatic Demon Viola, and the ghostly Demon Bells forged from repurposed artillery shells. Combined with motion-reactive live projection and audio-reactive lighting, the performance amplifies the timeless conversation between ear and instrument, the aether and ourselves.

Opening the ceremony is Los Angeles-based composer, vocalist, harpist, and multi-instrumentalist Nailah Hunter. Blending ethereal harp arpeggios, lush ambient synthesis, and mystical world-building, Hunter’s soothing yet uncanny compositions set an enchanting, contemplative foundation for the evening.

Following 4 sold out performances in Los Angeles, New York City (2x), and San Francisco, Rite of the Oracle is Eternal Research’s most dynamic show yet, melding impassioned voices with cutting-edge transmedia and instrumentation to offer the key to the Oracle of Delphi’s origin: the powers of embodied vision. Stay in touch with the latest Eternal Research events and instruments by following @eternalresearchmusic on Instagram or visiting eternalresearch.com."

Polivoks + Altair 231 — M-VAVE FM-1 Firmware | Скоро от HanzVolt — прошивка для M-VAVE FM-1

video upload by HanzVolt

"Coming soon from HanzVolt: Polivoks and Altair 231 firmware for the M-VAVE FM-1. Part of the Soviet Series. More at hanzvolt.com

Скоро от HanzVolt — прошивка для M-VAVE FM-1: Поливокс и Альтаир 231. Часть советской серии. Подробнее на hanzvolt.com"

You can find the M-VAVE FM-1 on Amazon.

FORM + ATEK303: Two Firmwares Jamming on the M-VAVE FM-1!

video upload by HanzVolt

You can find the M-VAVE FM-1 on Amazon.

"Live jam session using the brand new ATEK303 and FORM firmwares on the M-VAVE FM-1 — two firmwares jamming together.

Cyborg face available at https://hansvolt.com — only a few slots left!

Get the only female cyborg face version at https://github.com"

The ATEK303 voice and its acid pattern generator, in a pocket synth. Press PLAY and a line plays; turn the knobs and it moves. No computer and no cables, if you like.

The ATEK303 voice

The same engine as the VCV Rack module: Open303 with the ATEK oscillator and diode filter, modelled on the 303 schematic. Against the original the difference stays at -51 dB: it is the same sound. With its fine tuning, as in VCV.

The acid pattern generator

SEQ makes a new line of up to 64 steps; the mutations change the rhythm, the octaves or the slides and accents. It is the ATEK303 SEQ algorithm: the same seed gives the same pattern in VCV and on the FM-1.

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M-Vave FM-1 as a SOMA Lyra-8 synth | ARTIHIVE mod

video upload by e y l v y

https://thefirmwarehub.com/ "Eight-voice experimental drone and polyphonic FM synthesizer with four interacting pairs, a 27-key keyboard, envelopes, legato glide, Hyper LFO, stereo motion, dual modulated delay, mutation, DISORDER and a 16-step arpeggiator. Artistically inspired by SOMA LYRA-8; independently developed.

I added some external Reverb and Delay to parts of the video."

You can find the M-VAVE FM-1 on Amazon.

Midicake UNA: building a track live on a Roland JUNO-X

video upload by midicake

"Watch Midicake UNA build a track from nothing on a Roland JUNO-X. Every sound is the JUNO-X. Every note comes from UNA and ARP, with the solo played live over the top.

It starts with a melody captured from the keys. The Bass track comes in, a three-chord chain is captured, and ARP takes over the drums. Then it's played live: the Modulators come on, the chord chain is switched off, and the chords go back to the player's hands.

UNA is a hands-on hardware composer for keyboards, synths, and the people who play. Hold a chord and the band starts. Change the chord and everything follows. Every pattern is parametric and playback is deterministic, so a pattern you like is a pattern you can repeat.

Midicake UNA is out now. The price you see is the price you pay, with duties and taxes included for the UK, EU, US, Canada, Switzerland and Australia."

Watch the UNA launch video: Introducing UNA: a hands-on hardware compo...

CHAPTERS
0:00 Capture a melody
0:17 Add the Bass track
0:35 Capture a chord chain
0:56 ARP running drums
1:49 Modulators on, chord chain off

Additional Midicake UNA posts

MTRX-1K – Oberheim Matrix-1000 Emulation | VST3 Synth

video upload by Synth Cloud

MTRX-1K – Complete Walkthrough | Matrix-1000 Emulation & Features

video upload by Synth Cloud

▬▬▬ Download Link ▬▬▬▬
🚀 MTRX-1K: https://www.synthonia.com...
"Explore MTRX-1K in detail with GPR Music Project: a complete walkthrough of its synthesizer architecture, sound editing capabilities, modulation system and integrated effects.

MTRX-1K is a VST3 synthesizer and standalone Windows application that recreates the classic Oberheim Matrix-1000 (1987) through firmware-based emulation.

In this extended presentation, the developer introduces the software's features, explains its synthesis architecture and demonstrates how MTRX-1K can be used for detailed sound programming and electronic music production.

Firmware-Based Synthesizer Emulation

MTRX-1K runs the original Matrix-1000 firmware version 1.20 on an emulated Motorola 6809 processor board, controlling six modeled CEM3396 voice chips.

The software reproduces the instrument's synthesis behaviour while offering selectable 6, 12 or 24-voice polyphony, stereo spread, voice detuning and polyphonic unison.

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UVI Introduces Twin 88 Keys

video uploads by UVI

"Twin 88 Keys - Acoustic and Electric Piano, Together

Twin 88 Keys blends two pianos you know by heart on one keyboard, with deep creative controls to shape every nuance. Play a chord, and the pristine strings of a concert grand and the iconic tines of a vintage electric piano answer together. The sound that rises between them is one you’ve never heard, yet it feels familiar from the very first note.

Discover a new instrument that brings a pristine concert grand and an iconic vintage electric piano together on a single keyboard."

https://www.uvi.net/twin-88-keys
Also included in SonicPass ➡️ https://www.uvi.net/sonicpass

Playlist:

1. UVI Twin 88 Keys - Performance by Mattia Vlad Morleo

Hear “Stitches” by Italian composer and pianist Mattia Vlad Morleo performed with the new Twin 88 Keys, which brings a pristine concert grand and an iconic vintage electric piano together on a single keyboard.

2. UVI Twin 88 Keys | Preset Showcase

Discover a new instrument that brings a pristine concert grand and an iconic vintage electric piano together on a single keyboard.

00:00 - Cinematic Full 00:15 - Kaleidoscopic 00:24 - Radio Compact 00:34 - Octave Dream 00:41 - Autopan Two 00:53 - Space Dyno 01:02 - Steady Tines 1 01:14 - Twintasia 01:22 - Small Movements 01:33 - Reactor 01:44 - Complex Numbers 01:54 - Still Seventh 02:04 - A Point 02:12 - Raccoon City 02:18 - Lullaby 02:31 - Vill Hamelin

3. UVI Twin 88 Keys | Overview - Video credits: Venus Theory



Built from two pianos you know by heart blended on one keyboard, with deep creative controls to shape every nuance. Play a chord, and the pristine strings of a concert grand and the iconic tines of a vintage electric piano answer together. The sound that rises between them in Twin 88 Keys is one you’ve never heard, yet it feels familiar from the very first note.

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Moog Minimoog *original* - Analog Synthesizer - Pro Serviced w/Restoration

Note: links to listings are affiliate links for which the site may be compensated.

via this eBay listing

"This one is in excellent cosmetic condition and working 100%. Serial #3034 (1973). It was recently serviced and with quite a bit of restoration. It needs nothing! It will be properly packaged when sold and will arrive in the condition as stated. Not sold as-is!"

Additional Analog U.S. Listings

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Moog Minitaur Analog Bass Synthesizer Desktop Module

Note: links to listings are affiliate links for which the site may be compensated.

via this listing

Additional Perfect Circuit listings

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