MIDI Sequencer feature artwork presenting its Android interface.

MIDI Sequencer

Create and edit MIDI patterns with step sequencing, swing, and quantization.
User Guide
Free App
Full App Version
Client
Renetik — independent product
Role
Product designer, UX/UI designer, Android and audio engineer
Date
March 2021 – Present
KotlinC++Android SDK/NDKJNICMakeFirebase

MIDI Sequencer provides a focused Android workflow for building and editing patterns, applying swing and quantization, and controlling external instruments or connected music applications.

The shared Renetik MIDI foundation adds external control and synchronization, application data import and export, visual themes, translations, and configurable performance behavior.

I designed MIDI Sequencer end to end: its product concept, music workflow, information architecture, interaction model, and visual interface. I then implemented the Android experience and took it through testing, release, iteration, and user support.

MIDI Sequencer is part of the Renetik Music Apps family and shares its Kotlin application foundations, native C++ audio engine, Firebase services, automated tests, and release workflow.

Highlights

Independent product design and engineering from concept through Google Play release.
Pattern and step-sequencing workflow.
Swing and quantization controls.
External instruments and application control.
MIDI synchronization with a connected music setup.
Multiple themes and translated interface.
Data import, export, and performance configuration.
MIDI Sequencer feature artwork presenting its Android interface.
MIDI Sequencer Android product screenshot 1.
MIDI Sequencer Android product screenshot 2.
MIDI Sequencer Android product screenshot 3.
MIDI Sequencer Android product screenshot 4.
MIDI Sequencer Android product screenshot 5.
MIDI Sequencer Android product screenshot 6.
MIDI Sequencer Android product screenshot 7.