Superbooth 2026: GS Music has released the keyboard version of the Bree6 6-voice analog polyphonic Synthesizer.
In early 2025, the Argentinian company GS-Music released the Bree6, a desktop polysynth whose structure is reminiscent of a Roland Juno. A keyboard version was also on display at trade shows such as Superbooth 2025.
Ahead of Superbooth 2026, GS Music has now released the keyboard version of the Bree6 in a black and blue version.
GS Music Bree6 Keyboard
The Bree6 Keyboard is a 6-voice analog polyphonic Synthesizer that offers the same features as the desktop version.
New in the GS Music Bree6 keyboard is a semi-weighted keybed with velocity and aftertouch sensitivity. ensuring a responsive and musical playing experience. Also, you can find pitch and mod wheels on the left side, plus octave down and up switches.
It also includes dedicated inputs for sustain and expression pedals, with the expression pedal offering configurable assignment and adjustable response range for flexible control.
Polyphonic Analog Engine
On the engine side, the keyboard version is identical to the Bree6 desktop, features a fully analog signal path, and offers a hands-on, one-knob-per-function user interface without menu diving.
From here, it passes through a 4-pole ladder lowpass filter with cutoff, resonance, and keyboard-tracking controls—a very classic filter structure. Then, it flows straight into the multi-FX processor.
Onboard is an ensemble-type chorus that simulates a string or vocal ensemble using multiple delay lines modulated by their dedicated LFOs. Next to this, you have a stereo delay with a maximum delay time of up to 1 second. You can set the delay time, feedback, and delay mix.
The Bree6 keyboard’s modulation is identical to, and as classic as, that of the desktop. Two ADSR envelopes can modulate the filter and amplifier (VCA) section.
A multi-wave LFO with up to 100Hz can be assigned to multiple destinations: oscillator mod and OSC PWM, cutoff, and VCA. Full MPE (MIDI polyphonic expression) is also onboard. The Bree6 keyboard also has 512 memory locations for your own sounds.
On the backside, you get a power supply input, a USB port for data, a full 5-pin MIDI interface (in/out/thru), a stereo output (L/R) with mono option, and a headphone output.
First Impression
It’s great to see that the GS Music Bree6 is now available as a keyboard as well. The desktop version already impressed with its sound, and I expect this one will too.
In terms of features, it’s very traditional, but with the major advantage of being completely hands-on. When compared to other analog polysynths in the same price range, the Bree6 keyboard is certainly one of the least equipped. Nevertheless, it is a beautiful, classic synth that is easy to understand.
GS Music Bree6 Keyboard is available now for $1699 (price on the official website), and it’s hand-built in Argentina.
More information here: GS Music
With the sequencer and arpeggiator in the keyboard version, this really does look like what the old Sequential Six-Trak should have been.