MIDIWriter2.0.1
Publisher Description
[[ A STRANGE MUSIC TOOL FOR MANIAC MUSIC LOVERS! ]]
MIDIWriter is a unique app that converts keyboard input into MIDI note messages. Each character you type instantly produces sound. You can also enter a phrase and play it back as a sequence with adjustable tempo and loop options.
KEY FEATURES:
Built-in Sound Engine:
No external app required! MIDIWriter includes a built-in General MIDI sound engine with 128 instruments and 9 drum kits. Just type and hear the sound immediately.
Phrase Playback:
Enter any text and play it as a musical sequence. Adjust the tempo (1-480 BPM), enable loop mode, and let your words become music. Space characters can be used as rests.
Drum Mode:
Switch to drum mode to play percussion sounds. Choose from 9 GM drum kits including Standard, Room, Power, Electronic, 808/909, Jazz, Brush, and Orchestral.
MIDI Output:
Send MIDI to other apps or external devices. Configure MIDI channel (1-16), program change (0-127), and destination. Works with Virtual MIDI and MIDI Network Session. Can be used simultaneously with the built-in sound engine.
Keyboard Support:
Use the on-screen software keyboard, or connect a Bluetooth/USB hardware keyboard for a real typing experience. Supports Japanese input with proper IME handling.
MIDI Network Session:
Connect to Mac or other iOS devices over Wi-Fi to control CoreMIDI-compatible sound generators remotely.
Dark Mode & Rotation:
Full support for light and dark modes. Works in portrait and landscape orientations on both iPhone and iPad.
Note: Playback stops when the app goes to background.
Using the Built-in Sound:
Simply launch MIDIWriter and start typing. Each key produces a unique sound based on its character code. Enable drum mode in Settings for percussion sounds.
Using with External MIDI Apps (Virtual MIDI):
1. Open a CoreMIDI sound generator app.
2. In MIDIWriter Settings, turn on "MIDI Output" and select the destination.
3. Type any key to hear sound from the external app.
Using with Mac (MIDI Network Session):
1. Connect iPhone and Mac to the same Wi-Fi network.
2. Open MIDIWriter on iPhone.
3. On Mac, open "Audio MIDI Setup" and configure Network MIDI.
4. Connect your iPhone to the session.
5. Open a CoreMIDI app on Mac and select the network session as MIDI input.
6. Type on MIDIWriter to play sounds on Mac.
Credits:
Built-in sound engine uses "GeneralUser GS" SoundFont by S. Christian Collins.
https://schristiancollins.com/generaluser.php
Version History Minor bugs have been fixed. 2.0.1 Jul 4 Complete rewrite with powerful new features!
- Built-in GM sound engine: 128 instruments + 9 drum kits. No external app needed!
- Simultaneous built-in sound and MIDI output
- Improved MIDI handling (Program Change, etc)
- Multi-language input support
- Dark mode support
- iPad optimization
- Landscape orientation support 2.0 Feb 3 64bit compatible 1.2.0 10/20/2017 - Adds a phrase play. 1.1.0 05/21/2012 1.0.0 04/25/2012
About MIDIWriter
The company that develops MIDIWriter is 正行 Akamatsu. The latest version released by its developer is 2.0.1.
To install MIDIWriter on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the MIDIWriter as malware if the download link is broken.
How to install MIDIWriter on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the MIDIWriter is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After MIDIWriter is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 2.0.1
posted on 2026-10-14
Version History Minor bugs have been fixed. 2.0.1 Jul 4 Complete rewrite with powerful new features!
- Built-in GM sound engine: 128 instruments + 9 drum kits. No external app needed!
- Simultaneous built-in sound and MIDI output
- Improved MIDI handling (Program Change, etc)
- Multi-language input support
- Dark mode support
- iPad optimization
- Landscape orientation support 2.0 Feb 3 64bit compatible 1.2.0 10/20/2017 - Adds a phrase play. 1.1.0 05/21/2012 1.0.0 04/25/2012
version 2.0.1
posted on 2026-09-05
Version History Minor bugs have been fixed. 2.0.1 Jul 4 Complete rewrite with powerful new features!
- Built-in GM sound engine: 128 instruments + 9 drum kits. No external app needed!
- Simultaneous built-in sound and MIDI output
- Improved MIDI handling (Program Change, etc)
- Multi-language input support
- Dark mode support
- iPad optimization
- Landscape orientation support 2.0 Feb 3 This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
64bit compatible 1.2.0 10/20/2017 - Adds a phrase play. 1.1.0 05/21/2012 1.0.0 04/25/2012
version 2.0.1
posted on 2026-08-26
Version History Minor bugs have been fixed. 2.0.1 Jul 4 Complete rewrite with powerful new features!
- Built-in GM sound engine: 128 instruments + 9 drum kits. No external app needed!
- Simultaneous built-in sound and MIDI output
- Improved MIDI handling (Program Change, etc)
- Multi-language input support
- Dark mode support
- iPad optimization
- Landscape orientation support 2.0 Feb 3 This update from Apple will improve the functionality of this app. No new features are included.
64bit compatible 1.2.0 10/20/2017 - Adds a phrase play. 1.1.0 05/21/2012 1.0.0 04/25/2012
