ALPHA PREVIEW: Enjoy full access for a limited time while we prepare our official launch!
Online FM Synthesizer
Four-oscillator FM synthesis with a granular engine, binaural beat generator, step sequencer, and 20+ studio effects — free in your browser, no install.
Oscillator 1
440Hz
Filter
Effects Chain
Oscillator 2
220Hz
Filter
Effects Chain
Oscillator 3
110Hz
Filter
Effects Chain
Oscillator 4
55Hz
Filter
Effects Chain
Keyboard
C3–C6
Loop Recorder
BARS
VOL100%
1
2
3
4
5
6
7
8
ArrangementSceneBar — / 16
1
2
3
4
5
6
7
8
Beat Generator
128
BANK
hold to clone
bars
Kick
Snare
Hat
Clap
Sub
Rim
Tom
Cym
808
LFO Modulation
LFO 1
LFO 2
LFO 3
LFO 4
LFO 5
LFO Modulation (LFO 4 & 5)
LFO 4 →
LFO 5 →
Click "Mod" on effect params to assign LFO modulation. Use LFO 4 & 5 above to modulate other LFOs.
Master Mixer
Oscillators
Drums
MIDI Control
Not connected
Activity:CCNotePitch
MIDI Mapping:
Right-click any slider or toggle to map it to your controller.
Linux MIDI Setup
Your SL MkII shows in ALSA - good!
Fix permissions:sudo usermod -a -G audio $USER
Then reboot (required for group change)
Use Chrome/Chromium (best Web MIDI support)
Firefox: enable dom.webmidi.enabled in about:config
Then try: aconnect 20:0 144:0
Permission denied? You MUST reboot after adding to audio group.
Audio I/O
Select your Traktor 10 or external interface
00:00
Record your performance and download as audio file