The short answer. MuseScore is the notation application: enter notes, lay out a score, play it back and print it. Stringed 2 is the practice tool — it shows you how a song is played and slows it down, which is a learning workflow rather than a writing one. Hydrogen is the drum machine: pattern-based programming with a step sequencer, which is notation for rhythm in the same way a spreadsheet is a document. The dividing question is whether you are writing music down or learning to play it, because a notation editor and a practice tool both display notes and do opposite things with them.
This guide covers 3 music notation software for macOS. Every fact below is drawn from the same verified records that back each app’s own page. The recommendations are our editorial judgment, not payment.
Quick comparison
| App | What it is | Pricing | Licence | Version |
|---|---|---|---|---|
| Hydrogen | media app | Open source | GPL-2.0 | 1.2.7 |
| MuseScore | media app | Open source | not published | 4.7.5.260831071 |
| Stringed 2 | media app | not published | not published | — |
What actually decides this
- Write, practise or program. Notation software produces a score. A practice tool consumes one and slows it down. A drum machine produces patterns, which are bars rather than pages. Three outputs, three workflows.
- What the input method is. A MIDI keyboard, a computer keyboard, a mouse and a step grid are four ways to enter notes. The one you have decides which tool is fast, and a notation app with no keyboard entry is slow for anything longer than a bar.
- What the playback is for. Playback can be a check on what you wrote or the actual performance. A sampled instrument library is the difference, and it is also the difference in download size.
- Whether the score can be exported properly. MusicXML and MIDI are the interchange formats. A PDF is a picture. If the score has to go to a publisher or another notation app, only the first two are real exports.
- What the layout engine can do. Automatic spacing that looks professional is the hardest part of notation software. A tool that produces a readable score without manual adjustment is worth more than one with more symbols.
- Whether parts can come out of the score. A full score and the individual parts a player reads are two different layouts, with different page turns and different amounts of empty staff. An application that extracts parts and then lets you reflow each one is a performance tool. One that only prints the full score is a study tool, and the ensemble will notice.
- What the instrument-specific notation is. Guitar tablature, transposing instruments, percussion clefs and chord symbols are four separate notations that sit on top of the staff. A tool that handles tab and one that only does a grand staff are different products for different musicians, and the difference is not visible from a feature list that says “supports notation”.
- Whether note entry can be step-time. Step-time entry — pick a duration, press a key — is how a long piece actually gets written, and a fast step-time workflow matters more than real-time recording. Real-time input from a MIDI keyboard needs quantisation and produces a score that has to be cleaned afterwards, which is a different job from writing.
- Where the playback sound comes from. A built-in soundfont, an external instrument plugin and no playback at all are three different answers. The built-in library is the one that decides the download size, and being able to swap it for a plugin is what separates a writing tool from a mockup tool.
Our picks
- MuseScore — Its record describes free, open-source music notation software, which is the notation case. Choose it when you need to write, lay out and print a score.
- Stringed 2 — Its record describes music practice software for learning to play favourite songs, which is the practice case. Choose it when the goal is learning to play a song rather than writing one.
- Hydrogen — Its record describes pattern-based drum programming, which is the pattern case. Choose it when the work is rhythm patterns rather than a full score.
The apps
Hydrogen
Hydrogen is a media app for macOS. Professional yet simple and intuitive pattern-based drum programming for GNU/Linux. It is released under GPL-2.0.
What it does. The digital home of the advanced drum machine.
Hydrogen is listed with current version 1.2.7.
Full profile and verified facts for Hydrogen →
MuseScore
MuseScore is a media app for macOS. Free, open-source music notation software. It is open source.
What it does. Create, play back and print beautiful sheet music with free and easy to use music notation software MuseScore Studio. For Windows, Mac and Linux.
MuseScore is listed with current version 4.7.5.260831071.
Full profile and verified facts for MuseScore →
Stringed 2
Stringed 2 is a media app for macOS. Music practice software designed to help users learn how to play their favorite songs. Its pricing is not published.
Full profile and verified facts for Stringed 2 →
How to choose
- No licence fee, source available. Hydrogen and MuseScore — the source can be read and, under the terms of each licence, reused.
- Pricing not published in our data. Stringed 2 — check the developer’s own site before assuming anything about cost.
Open source: Hydrogen and MuseScore (2 of 3).
Common mistakes
- Printing a score as PDF and expecting another notation app to open it.
- Entering a long piece with the mouse and blaming the software for the time.
- Using a practice tool to write an arrangement.
- Judging playback quality without loading a decent instrument.
- Printing a full score for the players and discovering there are no parts.
- Writing a transposing instrument at concert pitch and finding out at the first rehearsal.
How this guide was put together
Each app’s facts come from its own record: the developer’s own pages and repository, the App Store listing where one exists, and the documentation, each with a source grade and an access date. Where a fact rests on the developer’s own statement rather than on something we verified independently, the sentence says so. Where our data has no value for something, the guide says “not published” instead of guessing.
A price appears here only where the record carries one from a stated source; the guide never estimates one, and it records the pricing model alongside so the two can be read together. Prices change and vary by region, so each app links to its own page for the current detail.
The facts and the recommendations are kept apart on purpose. Everything in the app entries, the comparison table and the answers above is composed from the records. The short answer, the criteria and the picks are our editorial judgment: they reflect what we would choose and why, and they are not paid for. Where we make a recommendation we name the condition it applies under, because we do not call anything “the best” without explaining the criteria.
Frequently Asked Questions
How do I choose between these music notation software?
There is no single answer — it depends on what you need. This guide covers 3 music notation software: Hydrogen, MuseScore and Stringed 2. They differ mainly in pricing model, licence and the trade-offs each one carries. Pick by the trade-off you care about rather than by rank.
Are these music notation software free?
Pricing across this group: open source (Hydrogen and MuseScore) and not published (Stringed 2). Where we list pricing as not published, the developer does not state a model we could verify — check their own site before assuming anything about cost. We quote a price only where the record carries one from a stated source, and we never estimate one. Prices change and vary by region and by store, so always check the developer’s own page for the current figure.
Which of these music notation software are open source?
Hydrogen (GPL-2.0) and MuseScore (not published) are open source.
Do these music notation software support Apple Silicon?
Our data does not carry an explicit Apple Silicon statement for any app in this group, so we do not claim one. The absence of a statement is not the same as the absence of support.
How do I choose between them?
Start with how you pay: the guide groups these apps by pricing model, because the budget is the constraint most people actually have. Then check the trade-offs listed for each app: the limitations are the part that decides most people’s choice, because they describe what the app will not do for you.


