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NASequencer is a text-based MIDI composer. It focuses on quick composing and easy management. Generally, plain-text is easy to edit and manage, however it can often be unreadable in music composition. NASequencer assists you in understanding the structure of a composition with real-time piano roll and event list previews. Additionally, it assists you to check sound of ensemble by SoundFont synthesizer.

NASequencer Features:
  • Playback
    • Mixer Control
    • SoundFont Synthesizer
  • Preview Sequence
    • Piano Roll
    • Event List
  • Editor Options

  • More...

What's New

Version 1.0.2:
  • Fix bug on OS Sierra that yellow screen covers whole preview when scrolling
  • Fix not applying pitch bend in real time
  • Fix not applying some midi events to exported AAC/WAV


  • OS X 10.11 or later

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NASequencer User Discussion


Current Version (1.x)


Downloads 63
Version Downloads 40
License Updater
Date 10 Aug 2017
Platform Intel 64 / OS X
Price Free
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