video upload by Sean Graves
The following is in via Sean Graves, who had the following to say:
"The piece, 'The 'Easel' Spirit in 3U: Rebuilding a Buchla Soul in Eurorack,' documents my five-year journey to replicate the specific workflow and 'soul' of the Buchla Music Easel using a curated Eurorack system."
"This post explores the creative power of 5-step sequencing (the 'migrating downbeat'), the 'origami' of wavefolding via the Verbos Complex Oscillator, and the organic harmonic dampening of vactrol-based Low Pass Gates. It’s a technical yet accessible look at why the West Coast workflow remains the 'holy grail' for performance - based synthesis."
The full write-up follows, with a demonstration of the system in the video above.
The “Easel” Spirit in 3U: Rebuilding a Buchla Soul in Eurorack
The Buchla Music Easel is legendary. It isn’t just a synthesizer. It’s a self-contained performance ecosystem. For many of us, the “Easel” workflow is the holy grail of synthesis. However, instead of chasing original hardware, I’ve spent the past five years rebuilding its specific soul within the Eurorack format. Because everyone deserves a hobby, right?
The Chef vs. The Sculptor
Most East Coast synthesizers work like a sculptor. You start with a massive block of harmonic noise (Sawtooth or Square waves) and carve it away with a filter. The Buchla workflow is different. It’s like being a chef in your own Hell’s Kitchen. You start with basic, “bland” ingredients (sine waves) and spice them up with Frequency Modulation (FM), Amplitude Modulation (AM), your choice, and then fold until the sound sizzles.
My current rig recreates this spirit by focusing on three pillars: Uncertainty, Complex Oscillation, and the iconic Sequential Voltage Source.
Part One: The Modulators (The Brain)
In a true Easel style setup, the Tokyo Tape Music Center 5-Step Sequencer acts as the brain. While most modern sequencers favor 4-8-16-32 steps, the 5-step limitation is actually a creative superpower.
