Polyphonic 6-Operator FM Synthesizer

Fire

Six operators. All 32 classic FM algorithms as featured on the Yamaha DX7. DX7-style four-stage envelopes with velocity sensitivity. Self-feedback per operator. Classic FM power in a modern, approachable workflow.

99 Presets 6 Operators / Voice 32 DX7 Algorithms 16-Voice Polyphony VST3 · AU · Standalone macOS 10.13+ · Windows 10+
USD $30 $40 Intro Offer
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Platform: macOS 10.13+ and Windows 10+ only. Not compatible with iOS, Android, Linux, or ChromeOS.

Single-user license · Activate on up to 2 computers · See EULA

Yamaha and DX7 are trademarks of Yamaha Corporation. Music Sound Software is not affiliated with or endorsed by Yamaha Corporation.

Fire FM algorithm selector

Interface

Click any image to enlarge.

Fire Algorithm Selector
Algorithm Selector
Fire LFO
LFO
Fire DX7 Envelopes
DX7 Operator Envelopes
Fire Effects Chain
Effects Chain
Fire EQ
5-Band Parametric EQ
Fire Compressor
Compressor
Fire Master
Master

Audio Demos

Six composition demos showcasing the range and character of Fire's FM synthesis engine. The demos were created using Apple MIDI loops and session musicians in Apple Logic Pro.

Demo tracks include drums for musical context. All other sounds are generated entirely from Fire.

01
Demo 1
Organ 7 · Piano 2 · Bass 1
02
Demo 2
Oboe · Lead 4 · Pad 1 · Picked Bass 2
03
Demo 3
Organ 5 · Piano 2 · Guitar 1 · Bass 1
04
Demo 4
Electric Piano 2 · Pad 1 · Bass 1
05
Demo 5
Pluck 3 · Piano 3 · Piano 2 · Organ 7 · Bass 4
06
Demo 6
Organ 6 · French Horn · Pluck 4 · Organ 1 · Organ 3 · Bass 1

Individual Preset Demos

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Bass 1
·
Bass 2
·
Brass 1
·
Clavichord
·
Electric Piano 2
·
Lead 1
·
Lead 2
·
Lead 3
·
Organ 1
·
Organ 4
·
Organ 7
·
Pad 1
·
Pad 3
·
Pad 4
·
Pad 6
·
Pad 9
·
Piano 1
·
Pluck 1
·
Pluck 4
·
Strings 6

What's Inside

Classic FM synthesis power with a modern workflow.

Six Operators Per Voice

Each operator acts as a carrier or modulator depending on the selected algorithm. High-quality wavetable sine generation with linear interpolation and self-feedback per operator.

All 32 DX7 Algorithms

Every classic FM algorithm from the Yamaha DX7 is included — from tight stacked modulator chains to complex multi-carrier arrangements. The full classic FM routing palette.

DX7-Style Envelopes

Each operator carries its own classic four-stage envelope (R1/L1–R4/L4) with velocity sensitivity.

Per-Operator Control

Frequency ratio (0.5×–16×), fine detune in cents, output level, feedback amount, and velocity sensitivity on every operator — precise harmonic and dynamic control.

Global LFO

Five waveforms (Sine, Square, Saw, Triangle, Sample & Hold) targeting pitch, level, or pan. Free-running, mono retrigger, and poly retrigger modes.

Global Effects Chain

Phaser (2–12 stages), Chorus, stereo Delay with independent L/R times, and Reverb with pre-delay and damping.

99 Factory Presets

Covering the classic FM palette: electric pianos, organs, strings, brasses, metallic textures, and more. Save, load, and manage your own presets.

Interactive Visualisers

DX7 operator envelopes, LFO waveform, EQ curve, and compressor curve — see your sound as you shape it. Envelope visualisers are interactive; drag the stages directly.

Virtual Keyboard & MIDI Input

Play directly from the on-screen virtual keyboard at the bottom of the UI — no MIDI controller needed. Connect a MIDI keyboard and it works automatically. Pitch bend and mod wheel are fully supported, with real-time pitch and mod visualisers.

MIDI CC Control

Key parameters respond to MIDI control change messages out of the box: CC 74 (filter brightness), CC 71 (resonance), CC 73 (attack), CC 72 (release), CC 7 (master volume), CC 10 (pan), CC 5 (glide), CC 1 (mod wheel / LFO depth), CC 64 (sustain pedal). All CCs update the UI instantly and are fully automatable in your DAW.

⚠ Windows Installation Note

Because Fire has not yet been signed with a code-signing certificate, Windows may display a security prompt. This is normal for independent software.

Step 1 — Complete the download in Edge
  1. When Edge shows "This file isn't commonly downloaded", click … next to the blocked download.
  2. Click Keep.
  3. Click Show more → Keep anyway.
Step 2 — If Windows SmartScreen blocks the installer
  1. When you see "Windows protected your PC", click More info.
  2. Click Run anyway.