MINI-COMPOSER by Karl Bartos Apple

MINI-COMPOSER by Karl Bartos

and Masayuki Akamatsu

Overview

Rating:
3.90
(24)
Version:
1.2.4
Last updated: 2026-08-29
Ranking
#246,275 ▼ 14
Overall

Features & Capabilities

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 completely free, but we would be glad if you would consider a donation to the Red Cross. In 2011, the year we were making this app, the Great East Japan Earthquake struck, and we released it as donationware to support the people affected. The damage from that disaster has still not fully healed, and disasters have continued to occur around the world since then. We continue to ask for your support.

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
  • Additional information

Please enjoy our music and think World.

User Growth & Download Statistics

App
By:
Masayuki Akamatsu
Rating:
3.90
(24)
Version:
1.2.4 Last updated: 2026-08-29
Version code:
890488066
Creation date:
2011-03-26
Compatible devices:
Size:
16.15MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-08-31
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Masayuki Akamatsu
Apple Apps Store
https://apps.apple.com/us/app/mini-composer-by-karl-bartos/id427541594
Website:
https://akamatsu.org/iphone/

User Reviews

This is a fun little step sequencer that has you creating music in seconds flat. My only complaint is it might be a little too simple. There are very few presets, a rather small grid and no option to import your own sounds. Without those features this is little more than a toy. That said, I assume it was the intent of the appmaker to create something basic and fun. If that is the case, this is a success.
by *****, 2013-07-27

Simple but very fun! It's easy to work with, not complicated. If you're a Kraftwerk fan, you'll certain dig this app!
by [.*****, 2012-04-16
View all user reviews ›

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