CC Harp

Ingenious 10-hole harmonica style instrument.

10-hole diatonic harmonica (sometimes called "blues harp") is a small but powerful instrument with great expressiveness.
CC Harp is a musical instrument application designed to take full advantage of the deep characteristics of harmonica, and is also pursued for rich live usability.
Since it uses a synthetic sound source method, it can handle various sounds with a small footprint of memory.


  • Requires iOS 9.3 or later
  • Compatible with iPhone, iPod touch and iPad


  • Interface is modeled after harmonica holes.
  • All 12 harmonica keys are available.
  • Various harmonica tunings are built-in.
  • Effective pitch bending is possible.
  • You can muffle the sound just as you would with a harmonica.
  • You can apply a tremolo effect with variable speed.
  • Adjustable airy sound peculiar to wind instruments.
  • Slide operation like a chromatic harmonica is possible.
For ease of use:
  • Make sound with up to two independent touches.
  • Make adjacent sounds with a single touch.
  • Easy chord play with two finger by smart chord feature.
  • Various splitting performances with 2 fingers touch.
  • Touch vibrato with adjustable sensitivity.
  • Volume expression is possible by tilting the device.
  • Notation display convenient for playing.
  • Concise banner shows the settings at a glance.
  • Preset acts like a pocket with several different harmonica in it.
As a musical instrument app:
  • Several built-in synthetic sounds including harmonica-like tones, flute, stringed, etc.
  • Simple sound synthesizer where you can create new sound.
  • Built-in Pitch tuner.
  • Reverb effect.
  • Lower the pitch by one octave is available.
  • You can Play-along with a song in your iPod library.
  • The screen can be reversed for left-handed people.
  • Change the screen color to your liking.
  • Dark Mode ready.
  • A detailed user guide is built-in and ready to use.
For those who want to make more use:
  • Sound data can be exported and imported via the device clipboard.
  • You can design your own harmonica tuning and import it.

Any interworking functions such as Inter-App Audio, AUv3, and MIDI, and function for recording and playback the performance are currently not supported.

Detailed features and usage of CC Harp are explained in the User Guide.
If you have any questions or concerns, feel free to contact us at

CC Harp is created by Chord-Works, and its details are published on the Chord-City website.