Creative Sound Design with Chemistry-Based Synthesis
What happens when you map the periodic table to sound? Explore chemistry-based synthesis — where atomic properties drive waveforms, and chemical reactions become audio effects.
Beyond Traditional Oscillators
Most synthesizers start from the same place: sine, saw, square, triangle. These waveforms are building blocks, but after decades of subtractive, FM, and wavetable synthesis, many sound designers are looking for genuinely new starting points.
What if the oscillator source wasn't a mathematical function, but the properties of a chemical element?
The Periodic Table as a Sound Source
Alchemy takes this idea into a playable instrument. You load up to six elements from the 118 on the periodic table, plus six Void tones, into one reaction chamber. Eight colour families ring the chamber. Hover a family and the table tells you which elements belong to it. Hover a cell and you see that element's pitch and waveform. The sound is the element.
Alchemy pitch keeps each element at its own pitch, transposed from the blue reference key. Keys pitch follows the notes you play, with a small detune that belongs to the element. Poly, Legato, and Retrig run up to 128 voices. This release is VST3 and a standalone app on Windows and macOS.
Chemical Reactions as Audio Effects
With the Reactor above zero, pairs that have a chemistry light a bond. The legend names the reaction. It is the authority. A few you can hear immediately:
- Water Formation (hydrogen and oxygen) is a phaser sweep.
- Alkali Halide, which is salt (sodium and chlorine), adds drive, a snappier attack, and a little level.
- Combustion (carbon, silicon, phosphorus, or sulfur, together with oxygen) is a flanger whoosh, and brighter.
- Radioactive Decay on a radioactive element by itself is distortion, Geiger clicks, and random level drops. An actinide’s own reaction, Actinide Decay, is heavier: grit, Geiger, extra detune, and a fade that restarts.
- Void tones do not react with anything, including each other. They are extra low-noise tones.
Closer together reacts harder. Closer to the Reactor is brighter. At Reactor zero you still hear the elements, and every reaction is off. Two reactions never stack on the same pair.
Practical Sound Design Applications
Chemistry-based synthesis excels in scenarios where you want textures that don't sound like typical synth patches:
- Film scoring — evolving pads and textures that feel organic rather than electronic
- Game audio — unique interface sounds, environmental ambiances, and sci-fi effects
- Electronic music — starting points that break out of preset fatigue
- Sound branding — distinctive timbres that don't sound like anything else on the market
Getting Started with Element-Based Synthesis
Factory presets are grouped as Signature, Chemistry 101, Chemistry 201, Reactions, Harmonious, Waveforms, and Words. Chemistry 101 is families. Chemistry 201 and Reactions are pairs chosen so a particular reaction is easy to hear, including salt and water. Words spells names with element symbols.
The bench under the chamber is the rest of the instrument. Envelope is per element, or one global Attack, Decay, Sustain, and Release. Tone is a low cut, a high cut, resonance, and a 12 dB or 24 dB slope, on the whole instrument. Character is Drive (Tube, Tape, or Fold), Geiger (Drop, Click, or both), and Motion (chorus, phaser, flanger, or tremolo). Space is delay, reverb, and compression. Reactions can still move filters, Geiger, and motion while those knobs sit at zero. If the patch is already crackling or sweeping, read the legend before you hunt for a fault.
Drag an orb to move it. Scroll it for volume. A volume of zero keeps the element in the chamber and takes it out of the chemistry.
Learn more about Alchemy or read the Alchemy guide.
Keep exploring
See the tools behind these workflows.