v1.0 · Studio Edition · Native C++

Compose with an AI that understands music theory.

A native DAW with 261 instruments, a 4-oscillator synth, Faust DSP effects, and an AI chat assistant that speaks music — chords, automation, mixing. Built on JUCE + Tracktion. Runs offline on your machine.

Latency
< 5 ms · ASIO · 64 buf
Instruments
261 · General MIDI
AI
Chord · automation · mix
Plugins
VST3 · CLAP · auto-scan
Blitz DAW v1.0
KICK
-3.2 dB
BASS
-6.0 dB
KEYS
-4.8 dB
PAD
-8.1 dB
MSTR
0.0 dB
Musical Typing · Ctrl+K · C4–C5
261
GM instruments
SoundFont library
26
4OSC presets
factory bank
5fx
Faust DSP effects
shimmer · tape · warm
Tracks
no track limit
<5ms
Audio round-trip
ASIO · 64 samples
VST3
+ CLAP plugins
auto-scan on launch
AI
Chat assistant
music-aware
MIT
Open source
no telemetry

Everything a studio needs, in one app.

From multi-track tracking to Faust-powered effects to a Logic-style musical typing keyboard — Blitz ships the studio, not a starting kit.

INSTRUMENT BROWSER261 patches
grand piano12 results
Piano8
Strings22
Brass14
Woodwind19
Guitar17
Synth45
Drums63
FX73
♪ Acoustic Grand Piano001
♪ Bright Acoustic Piano002
♪ Electric Grand Piano003
♪ Honky-Tonk Piano004
♪ Rhodes EP005
♪ Chorused EP006
♪ Harpsichord007

261 GM instruments

Piano, strings, brass, woodwinds, guitars, synths, drums — a complete General MIDI SoundFont library, indexed and ready to play. Every patch loads in under 50 ms. Browse by category, preview with keyboard, drag into any track.

4OSC SYNTHESIZERSub Wobble
OSC 1 SIN
OSC 2 SAW
OSC 3 SQR
OSC 4 TRI
CUTOFF
RESO
DRIVE
VOLUME
ADSR

4OSC subtractive synth

Four oscillators (Sin · Saw · Square · Triangle), two filters, two LFOs, dual ADSR envelopes. 26 factory presets. Programmable down to the modulation matrix.

FX RACK5 inserts
SHIMMER VERB
TAPE WARBLE
STEREO WIDENER
ANALOG WARMTH
SPACE ECHO

Faust DSP effects

Shimmer Verb, Tape Warble, Stereo Widener, Analog Warmth, Space Echo — written in Faust, compiled native, sample-accurate. Real knobs, real bypass switches, zero latency.

ARRANGEMENT · 92 BPM4/4 · D MINOR
● KICK
● BASS
● KEYS
● PAD

Multi-track audio & MIDI

Unlimited tracks. Audio and MIDI recording. Comping, takes, lanes. Sample-accurate automation. Side-chain routing. The fundamentals, done right.

▌ 4OSC factory presets
Init Lead Warm Pad Bass Sub Pluck Soft Glass Bell Cosmic Pad Reese Bass Mono Lead Sub Wobble FM Bell Pulse Square Saw Stack Bright Brass Vintage Keys Acid Bass Strings Lush Dirty Lead Air Pad Noise Sweep Hard Reset Square Bass Glide Lead Detuned Saw Bell Pluck Deep Sub Talk Box

Talk to it. It composes back.

Natural language control of tracks, chords, automation. The AI knows music theory, your project state, and what a side-chain bus is.

B
Blitz Assistant
Music-aware · 1M context · local or cloud
Make a 92 BPM lo-fi beat in D minor. Four bars. Side-chain bass to kick.
Done. Created 4 tracks: Kick (909), Bass (4OSC · Sub Wobble), Keys (GM Rhodes, Em9→Am9→Dm7→A7sus4), Pad (Cosmic). Side-chain bus on bass, ducking 6 dB on kick hits. Tempo locked to 92.
Add Shimmer Verb on the keys, but only after bar 2.
Faust Shimmer Verb inserted on Keys. Automation lane drawn: 0 → 35% wet between bar 2 beat 1 and bar 2 beat 3. Rendering preview…

Music theory aware

Chord progressions, voice leading, modal interchange, cadences — the AI understands the language of music, not just notes.

⤿

Automation by description

"Ramp the cutoff from 200 Hz to 4 kHz across bar 3." Drawn instantly. Sample-accurate. Editable like any other automation.

Project-aware reasoning

Reads your current arrangement, knows what plugin chains exist, suggests changes that fit what you've already built.

Local or cloud, your call

Run a 7B model on your GPU, or point Blitz at Claude / OpenAI. Same chat, same tools — one config line decides.

A playable keyboard, right in the app.

Press Ctrl+K — the QWERTY row becomes a Logic-style piano, with pitch bend, mod wheel, and sustain pedal.

MUSICAL TYPING · C4 — C6 Octave: 4 · Velocity: 100 · Sustain: OFF
C4
D4
E4
F4
G4
A4
B4
C5
D5
E5
F5
G5
A5
B5
♭ ♯ press QWERTY row 1 / 2 pitch bend 3-8 mod wheel Tab sustain
Key bindings
A S D F G H J K L ;White keys (C–E)
W E T Y U O PBlack keys
Z / XOctave − / +
C / VVelocity − / +
1 / 2Pitch bend down / up
3 – 8Mod wheel
TabSustain pedal
Piano roll features
  • ◆ Pencil tool for drawing notes
  • ◆ Keyboard-driven slide preview
  • ◆ Velocity lane below notes
  • ◆ Quantize · swing · humanize
  • ◆ Per-note pitch automation
  • ◆ Drag & drop SoundFont presets

Built on professional foundations.

Engine, formats, hardware paths — chosen for reliability, not marketing.

Engine
  • · JUCE 7
  • · Tracktion Engine
  • · 32-bit float audio
  • · Sample-accurate timing
  • · Lock-free audio thread
Formats
  • · VST3 / CLAP plugins
  • · SoundFont 2 (SF2)
  • · MIDI 2.0
  • · WAV / FLAC / OGG
  • · Faust DSP source
Audio I/O
  • · ASIO (Windows)
  • · CoreAudio (macOS)
  • · ALSA / JACK (Linux)
  • · 44.1k – 192k Hz
  • · 64 / 128 / 256 buffer
AI runtime
  • · llama.cpp (local)
  • · Anthropic Messages
  • · OpenAI compatible
  • · CUDA / Metal / CPU
  • · 1M token context
Blitz DAW v1.0 · Studio Edition

Download Blitz. Start composing.

A native DAW with a composer-AI inside, 261 instruments, a programmable synth, Faust effects, and zero subscription. 38 MB.

● MIT licensed ● No telemetry ● No account required ● Open source