Opening the iTunes Store.If iTunes doesn’t open, click the iTunes icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To download the free app MINI-COMPOSER by Karl Bartos and Masayuki Akamatsu by Masayuki Akamatsu, get iTunes now.

Do you already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC

MINI-COMPOSER by Karl Bartos and Masayuki Akamatsu

By Masayuki Akamatsu

Open iTunes to buy and download apps.


Karl Bartos (electronic musician, ex-KW, co-composer of songs like The Robots, The Model, Computer World,...) and Masayuki Akamatsu (media artist and author of various iPhone apps such as Banner, Oscillator, Echochops,...) create a 16 step music sequencer which is free, simple and fun. The executive producer is Jean-Marc Lederman.

"We have created this simple music app for fun: it implements the basic waves of a synthesizer with a 16 step sequencer. This app is totally free of charge but we would be very glad if, as a relief to people's suffering following the earthquake and tsunami, you would consider a donation to lend a helping hand to Japan. Please make use of the link button to the Red Cross site."

This application has the functions listed below.

- 16 steps sequencer
- Start/stop sequence
- Multi-touch note input
- 32 polyphonic tones + 1 drum track
- 4 waves (saw, triangular, square, sine)
- 4 drumbeat loops
- Drums on/off
- Random notes
- Clear notes
- Wi-Fi sync play
- Additional information

Please enjoy our music and think Japan.

[[NOTE]] It might take one half minute to establish a Wi-Fi connection if you turn Wi-Fi on after launching MINI-COMPOSER. It would be better to connect Wi-Fi before you launch MINI-COMPOSER. If you have one iOS device, Wi-Fi connection is not needed.





- 16ステップ・シーケンサ
- シーケンスのスタート / ストップ
- マルチタッチでのノート入力
- 同時発音数32音のトーンと1トラックのドラム
- 4種類のウェーブ・フォーム(ノコギリ波、三角波、矩形波、サイン波)
- 4種類のドラム・ループ
- ドラムのオン / オフ
- ノートのランダマイズ
- ノートの消去
- Wi-Fi/LANでの同期演奏
- 補足情報



What's New in Version 1.1.1

- Minor bugs fixed
- Set the supported iOS version to 3.0 and later.

- マイナー・バグ・フックス
- サポートするiOSのバージョンを3.0以降としました。


iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4
iPad Screenshot 5
MINI-COMPOSER by Karl Bartos and Masayuki Akamatsu
View In iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Music
  • Updated:
  • Version: 1.1.1
  • Size: 13.3 MB
  • Languages: English, Japanese
  • Developer:

Compatibility: Requires iOS 3.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

0 0 0 We have not received enough ratings to display an average for the current version of this application.