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Music21 Alternatives
Similar projects and alternatives to music21
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Judoscale
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strudel
Web-based environment for live coding algorithmic patterns, incorporating a faithful port of TidalCycles to JavaScript
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opensheetmusicdisplay
OpenSheetMusicDisplay renders sheet music in MusicXML format in your web browser based on VexFlow. OSMD is brought to you by PhonicScore.com.
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midi2tones
Fork of MIDITONES - Convert MIDI files to a simplified time-ordered sequence of note commands
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CodeRabbit
CodeRabbit: AI Code Reviews for Developers. Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR.
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time-signature-calculator
Calculate how many 4ths, 8ths, ... notes fit into your meassure in any Time-Signature
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InfluxDB
InfluxDB high-performance time series database. Collect, organize, and act on massive volumes of high-resolution data to power real-time intelligent systems.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better music21 alternative or higher similarity.
music21 discussion
music21 reviews and mentions
Posts with mentions or reviews of music21.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-11-27.
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Ask HN: Tools or frameworks to build music theory games
Nobody else has mentioned it, but Music21 is an extremely good library doing just this: https://github.com/cuthbertLab/music21
I've used it to build an open source vocal range detector: https://www.makeartwithpython.com/blog/vocal-range-python-mu...
- LilyPond: Music Notation for Everyone
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A smart way to translate guitar chords into piano sheet music with Python
I chose Python as a programming language here because, as you could probably guess, there are myriads of libraries in Python for working with music. I found mingus to be the simplest for working with guitar chords and music21 for generating the piano score. It might be possible though to do everything with music21 only, because it's extremely powerful, but I found mixing the two libraries to be easier than implementing the functionality I needed from mingus with music21.
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Looking for help to create a program
If you are interested in doing anything with Python, be sure to check out Music21, which has a lot of cool features — including doing twelve-tone matrix stuff like this — built-in.
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Transposition Midi
http://web.mit.edu/music21/ Music21 documentation.
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[D] Is MusicGPT a viable possibility?
It's definitely a viable possiblity, and there's quite a few companeis already doing it. If you want to explore doing it yourself, I'd check out https://web.mit.edu/music21/ and build some basic models using LSTM etc. to have some fun using open source MIDI data sets like https://magenta.tensorflow.org/datasets/maestro .
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Ask HN: Is there a OS tool which queries MIDI datasets by chord progression/key?
A little manual, but music21[0] can do the analysis!
[0]: http://web.mit.edu/music21/
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Is there a music term that indicates a thing that could be either a note or an rest?
There's no universally accepted term for the latter concept that I know of. For example, the music21 music processing library calls the general class that includes notes, chords and rests Music21Objects, and you'd think they'd call them something better if they could.
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Any ideas for AI that could compose sheet music for a kokle ensemble?
This Python toolkit has support for analyzing folk tunes. https://web.mit.edu/music21/
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compilation failures
(define-public music21 (package ... (build-system python-build-system) (arguments `(#:phases (modify-phases %standard-phases (replace 'check (lambda* (#:key tests? inputs outputs #:allow-other-keys) (when tests? (add-installed-pythonpath inputs outputs) ;; See: https://github.com/cuthbertLab/music21/issues/1164 (invoke "python" "-m" "music21.stream.tests"))))))) ...))
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A note from our sponsor - InfluxDB
influxdata.com | 21 Apr 2025
Stats
Basic music21 repo stats
10
2,235
8.8
8 days ago
cuthbertLab/music21 is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
The primary programming language of music21 is Python.
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