ChordFountain

Shifting Soundscapes

• Customize three probabilistic arpeggiators to create ongoing harmonic variation.
• Use simple envelopes and effects to sculpt the included samples of synthesizers and plucked/struck instruments.
• The onscreen keyboard with scale mode always plays in key with the generated harmony.
• Optional external MIDI control.
• Share presets between iPhone, iPad, and Mac
• No AI, just some cool algorithms rooted in randomness.

The sounds start with custom-recorded synthesizer, guitar and bass samples, as well as piano, pizzicato strings, vibraphone and marimba from the University of Iowa Electronic Music Studios.

Simple arpeggiator controls, independent for each part, allow for a wide range of textures and possibilities.

There are three parts which can independently load the samples. Each part includes tone sculpting controls.

Each part has its own tempo-syncable delay, and smooth, lush reverb.

The onscreen keyboard is always set to the same scale that is used to generate the harmony. It can play any of the included samples, with all the same audio controls and effects. You can also optionally use the scale mode with an external MIDI keyboard controller.

• Three independent synchronized arpeggiated parts, plus one part to play live.
• 12 instrument samples, freely assignable to each part.
• In-app recording.
• 12 Factory presets.
• External MIDI keyboard control via USB.

• For iPhone, iPad, and Mac.
• Buy once to use on all platforms.
• Presets can be shared between platforms.
• One-time payment (no subscription).

• Requires about 37 MB of storage.
• iPhone/iPad: requires iOS/iPadOS 18.6 or later.
• Compatible with the new iPhone Duo.
• Mac: requires macOS 15.6 (Sequoia) or later. Apple Silicon and Intel Macs are both natively supported.

Have questions or need help getting started? Please visit our Support Page