CC Whistle

Whistling on the keybord!

CC Whistle is a musical instrument app with a lip-whistle tone.
Using a unique hybrid keyboard that can handle portamento and vibrato freely, you can perform just like whistling.
Since it uses a synthetic sound source method, it can handle various sounds with a small footprint of memory.


  • Unique hybrid keyboard that can handle portamento and vibrato freely
  • Select from three keyboard sizes: 25, 31, and 37 keys.
  • Shiftable keyboard range arbitrarily.
  • Up to 2 touches can be handled simultaneously to make simple whistling duet.
  • Built-in reverb.
  • Built-in pitch tuning mechanism.
  • Play along with songs in your music library with the built-in play along player.
  • Changeable gradual color in the screen to your liking.
  • Supports dark mode.
  • A detailed user guide is built in and ready to go

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


  • Requires iOS 12.0 or later
  • Compatible with iPhone, iPod touch and iPad

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

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