KQ Dixie is a 6-Operator FM synthesizer that is modeled on the synthesizer which appeared on the 1980s.

FM synthesizers make sounds with Frequency Modulation.
FM brings rich and brilliant sounds which are impossible to create with analog one.
It makes very complex waves with simple modulations.
The same method is used for radios.
The synthesizer gained much popularity in the 1980s.

This app lets you make sounds freely with 156 voice parameters.
Almost all parameters but multi-timbral, filter, and delay are compatible with DX7.

No guarantee with 32-bit devices.
*** There are some UI issues on iPhone 4S. ***
Audio Unit v3 compatible.
Audiobus compatible.
32 algorithms included.
You can manage the hardware DX7 when it is connected with external MIDI cables.
Supports DX7 System Exclusive Messages (SysEx) and syx files.
Supports Zip files.
You may be able to find a lot of patches on the internet.
Multi-timbres and Unisons functions are there.

Yamaha DX7 is a trademark of Yamaha Corporation.
I have no business relations with Yamaha.

What’s New

Version 2.0.4

Added some multi-timbre settings:
- Mode of Patch Values
- Mode of Program Change / Dump

Ratings and Reviews

4.6 out of 5
14 Ratings

14 Ratings

Sunburst335 ,

Wonderful DX for the iPad

This is just what I have been waiting for someone to build. A straight forward 6 operator FM synth for the iPad. It sounds good and all the controls fit on one screen. There is also a very useful and quick Sysex file import facility to provide thousands of ready made presets.

What makes it a 5-star app for me, is that the developer listens to his customers and keeps improving the app, instead of taking things away like many others (including the big companies) in this appstore. Being able to play velocity using the onscreen keyboard is one such noted improvement, as there are many times when one cannot use a separate MIDI touch sensitive keyboard to program and play it.

Thanks to the dev for making a great app at a great price!

Developer Response ,

Thank you for a review.
The touch sensitive keyboard has been implemented at version 2.0.
Try setting the wheel mode to "modulation" and you can change the velocity sensitivity.

mmtuk ,

So far, so good!

Impressed by simplicity of use, managed to get 100s sound banks installed - that exposed only problem in interface I’d like changing straight away...... Instead of showing filepath for every single patch when browsing, change it so that folders are present for ease of use. Would be nice if full cut and paste could be added to the folder structure too. At present it would be impossible to compile a master library from selections made after auditioning from 1000s of patches. Other than that - a great FM app at a great price - thoroughly recommended.

Dr Skrivenski ,

Excellent app for FM files!

There are literally thousands of DX7 patches available on the net and this app is superb at presenting them. After the last upgrade the sound disappeared but returns if you visit PARAM and use the reset button below the poly/mono mode button. A tiny glitch that doesn't spoil the 5* rating.


Ryouta Kira
5.8 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad and iPod touch.


English, Japanese

Age Rating
Rated 4+
© 2018-2019 KIRA Ryouta


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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