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Neothesia

Free, open-source falling-notes piano practice app and MIDI visualizer, similar to Synthesia.

Open sourceMusic learning apps
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About Neothesia

Neothesia is an open-source program that shows the notes of a MIDI file as colourful blocks falling onto an on-screen piano keyboard, the same idea Synthesia made popular. You can watch a song to learn it by eye, or plug in a MIDI keyboard and play along; if you have no keyboard, a built-in synthesizer plays the sound. It runs on Linux, Windows and macOS and is licensed under the GPL-3.0, so it costs nothing and has no paid tier. Because it works with any MIDI file, the song library is whatever you can find or create. It is lighter on teaching features than commercial apps: there are no structured courses, sheet-music lessons or long-term progress tracking, so it works best as a practice and visualisation tool, and many people also use it to make piano tutorial videos. It suits hobbyists, Linux users and anyone who wants the falling-notes approach without paying for Synthesia's unlock.

Best for: Players who want free falling-notes piano practice with their own MIDI files, especially on Linux.

Pros and cons

What works

  • Completely free and GPL-3.0 licensed
  • Plays any MIDI file and works with MIDI keyboards
  • Built-in synthesizer if no keyboard is connected
  • Runs on Linux as well as Windows and macOS

Why people leave

  • No structured lessons or courses
  • No mobile or tablet version
  • You must supply your own MIDI songs

Top Neothesia alternatives

See all 2
  1. 1Synthesia logo
    Synthesia

    The original falling-notes app, adding sheet music, hand practice modes, progress tracking and tablet apps.

    66.5
  2. 2flowkey logo
    flowkey

    Video-based lessons and courses with Wait Mode, if you want structured teaching rather than just MIDI files.

    62.6

Why people left Neothesia

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Neothesia: common questions

Is Neothesia free?

Yes. Neothesia is free, open-source software.

Is Neothesia open source?

Yes. The source code is on GitHub at PolyMeilex/Neothesia.

What platforms does Neothesia run on?

Neothesia is available for Windows, macOS and Linux.

What are the best alternatives to Neothesia?

The highest-ranked Neothesia alternatives right now are Synthesia and flowkey. See the full ranked list for pricing, platforms and verified facts.

See all 2 Neothesia alternatives