MusicNote Haven MIDI Manager
Windows + Linux desktop app · MIDI/KAR archive management

Organize, search and play your MIDI collection.

MIDI Manager runs locally on Windows and Linux. Index and analyze MIDI/KAR folders, safely build an Organized Library, play files and create floppy/Gotek IMG images.

View Windows in Microsoft Store Download Linux 1.1.0 Get product updates Reserve MIDI Manager First 50 See how MIDI Manager works
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Local app The application runs on your computer and works with your own folders.
No file upload Your MIDI, KAR and keyboard files are not uploaded to this website.
Linux + Windows Windows 1.1.0 is available through the official Microsoft Store listing. Linux 1.1.0 is available as a verified Ubuntu/Kubuntu .deb.
See the real desktop app

From scattered MIDI/KAR files to a searchable, playable library.

MIDI Manager works with folders on your Windows or Linux computer. The app inventories and analyzes files, helps you review uncertain matches, copies approved files into a separate Organized Library, and supports playback plus floppy/Gotek IMG workflows.

  1. Choose your existing folders Point MIDI Manager at the MIDI/KAR collection already stored on your computer, NAS or external drive.
  2. Index and analyze Build a source inventory, inspect technical MIDI data and resume deeper analysis when needed.
  3. Review and organize safely Search, review uncertain matches and copy approved files into a separate Organized Library.
  4. Play and create disk images Listen from the app, build playback queues and prepare floppy/Gotek IMG files and reports.
Downloads & Microsoft Store Explore all features
Current MIDI Manager 1.1 interface showing consolidated Search & Filter, safe organization and explainable analysis workflows.
Current MIDI Manager 1.1 production interface.
New real-world case study

193,195 MIDI files indexed in one local library

See the real Dashboard, fast artist searches, deep file evidence and the human Review Queue.

Open the 193K case study Watch on YouTube
193,195 MIDI and KAR files indexed
188,000+ files deeply analysed
14 Michael Bublé search results
131 ABBA search results
See MIDI Manager 1.1

See MIDI Manager in action

See Search & Filter, targeted review and reanalysis, explainable File Detail evidence, safe Library Organizer planning and verified copying, plus database backup and recovery visibility.

YouTube is contacted only after you press play.

Get MIDI Manager 1.1 Open on YouTube
Important clarity

This website is not the application.

MIDI Manager is desktop software. The website explains the product, shows the manual, collects MIDI Manager First 50 interest and hosts release/download information.

The application itself runs locally and uses the folders you choose in its settings. Your music files stay on your own computer, NAS or storage device.

Website Information, manuals, MIDI Manager First 50 signup and downloads.
Desktop app Index, search, organize, review, play and manage your local MIDI/KAR archive.
The problem it solves

A practical desktop app for real MIDI/KAR archives.

If you have collected MIDI files for years, you probably know the problem: folders full of unknown files, duplicates, karaoke files, old keyboard disks and names that no longer tell you what the music actually is.

MIDI Manager is production desktop software for Windows and Linux. It inventories and analyzes your existing folders, helps you review uncertain files, copies approved files into a separate Organized Library and supports playback and floppy/Gotek IMG workflows without uploading your archive.

Read the complete MIDI Manager overview

Support: musicnotehaven@ethercomm.eu

Library Organizer

Safer analysis and review for real MIDI/KAR collections.

MIDI Manager 1.1 combines filename, metadata and analysis evidence to make safer Organizer decisions while keeping uncertain files available for review.

Source files remain separate from the Organized Library so users can review and approve copy-first organization without silently rewriting the original archive.

Production release

MIDI Manager 1.1 for Windows and Linux

Linux 1.1.0 is available as the verified Ubuntu/Kubuntu 24.04 amd64 .deb. Windows 1.1.0 package 1.1.0.0 is available through the official Microsoft Store listing.

Open Downloads, Linux Install Manual · Windows Install Manual.

Current platform releases Windows 1.1.0 · Linux 1.1.0 Download and checksums · User Manual

Find what you have

Index large .mid, .midi and .kar collections so they are easier to search and review.

Organize safely

Build a cleaner Organized Library by copying approved files while keeping the original archive available.

Listen while sorting

Play files, mark favorites and use playback workflows while reviewing your collection.

Build disk images

Create 3.5 inch disk image workflows for vintage keyboard and Gotek-based setups where licensed.

Production status: Linux 1.1.0 is available as a verified .deb. Windows 1.1.0 is available through the official Microsoft Store listing. Keep independent backups before major archive operations. Go to downloads.