NASequencer
Music
Only for Mac
Free · In‑App Purchases
Mac
Text-based MIDI Composer. For Composition, Transcription, Karaoke, etc.
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.
*** Basic Features ***
Playback
• Mixer Control
• SoundFont Synthesizer
Preview Sequence
• Piano Roll
• Event List
Editor Options
• Embedded Editor with Automatic Color Coding
• External Editors Supported
Supported Languages
• Note as Sequence*
• ABC Notation Version 2.1
• Music Macro Language
* NASequencer original format. Focused on readability and designed to resemble what you see in the event list.
*** Full Version ***
Additional Synthesizers
• Support for loading additional synthesizers*
• Mix multiple sounds from different SoundFonts
* In SoundFont format (.sf2 files)
Export
• Standard MIDI File (Format 1)
• Waveform Audio File Format (WAV 44.1kHz Linear PCM 16bit stereo)
• Advanced Audio Coding (AAC 44.1kHz 192kbps stereo)
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[Fixes for functional issues]
- Crash when exporting to AAC on macOS 13.5 and later
- Wrong beat position on the measure after 1/8 time sign
- Voice would occasionally cut off immediately after the note-on event
[Maintenance update]
- Support Mac computers with Apple silicon architecture
- Raise the minimum macOS deployment target to 10.13 in accordance with support scope of Xcode 26.2
- Fix issues with running on macOS 26.2
- Fix codes using deprecated APIs in preparation for future OS updates
- And other minor bug fixes and display issue corrections
The developer, Noriyoshi Abe, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Noriyoshi Abe
- Size
- 56.1 MB
- Category
- Music
- Compatibility
Requires macOS 10.13 or later.
- Mac
Requires macOS 10.13 or later.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Full Version $7.99
- Copyright
- © 2016 Noriyoshi Abe