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  1. Chrome, Edge or Firefox
  2. Plug in a MIDI keyboard
  3. Pick a sound
  4. Headphones on. Jam!

Contemplates

A slow, dark pad that swells in, opens up and takes its time to fade.

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Labels
Octave
0
Semitones
0
Sustain
Sustain off · hold Shift
Volume
Reverb
Mix
Glide
Glide time

No MIDI keyboard? Play with your computer keys: bottom rows are the lower octave, top rows the higher one. Hold Shift to sustain. ← → octave, ↑ ↓ semitone.

Ambient pad synth

A slow ambient pad synth to play online, free

Slow in, slow out.

Contemplates is two sawtooth waves an octave apart through a narrow, resonant filter that slowly opens as each note swells in, then rings for seconds after you let go. Hold a chord and let it breathe.

Your touch opens the filter on a MIDI keyboard.

On a velocity-sensitive MIDI keyboard, playing harder makes it both louder and brighter, so a soft chord stays dark and a firm one blooms. Hold the sustain pedal and the tails overlap into one long wash.

Free, made on your own device.

Nothing to download and no account. Every note is synthesized right here, and anything you record never leaves your computer.

How a synthesizer works, with controls you can turn