Fun!
My daughter is learning a few instruments at school and she had a great time discovering Chords using this app. Lots of fun.
Free
About
This app generates full chords by pressing a single key, offering various chord types and modifiers. It features a synthesizer engine with adjustable parameters and performance controls for creative musical expression.
✓Single-key chord generation
✓Multiple chord types and modifiers
✓Key Mode for harmonic context
✓Strum, Harp, and Arp playback modes
✓Six-voice polyphonic synthesizer
✓Adjustable synth parameters
✓Voicing and performance controls
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What's New in Oh a Chord
1.2.0
October 5, 2026
Oh a Chord now plays inside GarageBand, and can drive your other music apps over MIDI. - Audio Unit: add Oh a Chord as an instrument in GarageBand or any other Audio Unit host. Each key on the host's keyboard plays a full chord, and playing higher or lower on the keyboard moves the chord with you. - The plugin has Chord Type, Modifiers, Strum, Harp, Arp and Key Mode, plus the sound picker. In Key Mode it lists every chord in your key and lights the one you're playing. - In GarageBand on iPhone, Face Control opens the filter as you open your mouth. On iPad, the four sound faders sit right in the plugin. - Your chord settings and sound are saved with your song, and Arp follows the song's tempo. - MIDI out: Oh a Chord appears as a MIDI source in other music apps, sending chords on channel 1 and bass on channel 2. Switch off "synth" in settings to use it purely as a controller. - Oh a Chord now plays alongside other apps' audio instead of stopping it, so you can play along with a track. - Chord Type now switches the moment you touch it, so tapping Minor over a held chord changes it right away. - Lifting one finger while holding several keys no longer re-strums the chord.
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FAQ
What is Oh a Chord?
Oh a Chord is a free music app for iPad and iPhone that allows users to play full chords by pressing a single key. It offers various chord types, modifiers, and a built-in synthesizer.
Does Oh a Chord require music theory knowledge?
No, Oh a Chord is designed for users with no music theory background. It simplifies chord creation by generating full chords from single key presses.
What are the playback modes in Oh a Chord?
Oh a Chord offers Strum, Harp, and Arp modes to play held chords dynamically. These modes spread notes like a guitar strum, roll them across octaves, or turn them into arpeggios.
Can I customize the synthesizer sounds in Oh a Chord?
Yes, Oh a Chord features a full six-voice polyphonic synthesizer with adjustable parameters like oscillators, filters, and envelopes. You can tweak and save your own presets.
What devices does Oh a Chord support?
Oh a Chord is available for iPhone and iPad devices.
Is Oh a Chord free to use?
Yes, Oh a Chord is completely free to download and use, with no in-app purchases or advertisements.
How often is Oh a Chord updated?
The app was last updated on October 5, 2026, with version 1.2.0. Specific update frequency is not detailed, but this indicates recent development.
Does Oh a Chord collect user data?
No, Oh a Chord prioritizes privacy and collects absolutely no data. It does not require an account, analytics, or any network requests, ensuring all saved content remains on your device.
