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Musopen

musopen.org

From $4.58/mo Free plan WebmacOSiOSAndroid
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Spec score 9.0 #1 of 50 in Digital Sheet Music Platforms

Spec sheet

What it does
Musopen provides free recordings, sheet music, textbooks, apps and educational materials intended to expand access to music education.Read 15 Oct 2026 · musopen.org
Audience
Musopen says its mission is to increase access to music education with free recordings, sheet music, apps, and educational materials.Read 9 Oct 2026 · musopen.org
Free plan
YesRead 22 Sep 2026 · musopen.org
Support
Musopen directs people with questions or bug reports to its contact page.Read 9 Oct 2026 · musopen.org
Headquarters
San Francisco, California, United StatesRead 28 Sep 2026 · musopen.org
Founded
The official homepage states that Musopen was founded in 2012.Read 15 Oct 2026 · musopen.org
Adagio
Adagio is a web studio-management app with student records, lesson and performance scheduling, homework assignment and billing.Read 15 Oct 2026 · musopen.org
Adagio payments
Adagio supports online credit card payments, billing reminders, payment tracking, and automated cancellation policies.Read 9 Oct 2026 · musopen.org
Android availability
Practice by Musopen is rated Everyone, has 10K+ downloads and was updated October 1, 2026 on Google Play.Read 15 Oct 2026 · play.google.com
API and SDKs
The official pages reviewed provide no public API reference, SDK package or developer integration documentation.Read 15 Oct 2026 · musopen.org
Commercial reuse
The FAQ says genuinely public-domain works may be used commercially, while warning users to verify each work's status.Read 15 Oct 2026 · musopen.org
Company type
Musopen identifies itself as a 501(c)(3) nonprofit based in San Francisco, California.Read 15 Oct 2026 · musopen.org
Copyright guidance
Musopen explains that public-domain status differs by country and that a composition and its recording can have separate copyrights.Read 15 Oct 2026 · musopen.org
Data safety
Google Play reports no third-party data sharing, possible collection of personal information, app activity and performance data, encryption in transit and deletion requests.Read 15 Oct 2026 · play.google.com
Developer address
Google Play lists the developer address as 5227 Shirley Ave, Tarzana, California, United States.Read 15 Oct 2026 · play.google.com
Documentation depth
Official support material consists mainly of FAQ, terms, privacy and feature pages; no versioned technical documentation or changelog is linked from the main site.Read 15 Oct 2026 · musopen.org
Educational resources
Musopen offers music-education resources for teachers and students.Read 15 Oct 2026 · musopen.org
Funding criticism
The 2010 Ars Technica report said Musopen funding had been sporadic and that some musicians feared freely released recordings could harm orchestral licensing revenue.Read 15 Oct 2026 · arstechnica.com
Funding news
Ars Technica reported on September 13, 2010 that Musopen's Kickstarter had exceeded $41,000 toward an $11,000 orchestral-recording goal.Read 15 Oct 2026 · arstechnica.com
iOS requirements
The App Store lists Practice as iPhone-only, free, 60.7 MB and age-rated 4+.Read 15 Oct 2026 · apps.apple.com
Limit: connectivity
Reviewers repeatedly complain that Practice requires internet access for sessions and statistics, limiting offline use.Read 15 Oct 2026 · chrome-stats.com
Limit: goals
An App Store reviewer reported that entering a 120-minute goal caused the app to mark it complete after two minutes.Read 15 Oct 2026 · apps.apple.com
Limit: reliability
Reviewers report update-related breakage, missing feeds, recordings that fail to play, spinning screens and slow responses from the developer.Read 15 Oct 2026 · chrome-stats.com
Limit: timer and history
Reviewers report timers stopping when the app is minimized or locked and annual progress resets that lose lifetime totals.Read 15 Oct 2026 · chrome-stats.com
macOS player
Moonlight is described as a free, open-source music player for macOS with no account, telemetry, or nag screens.Read 9 Oct 2026 · musopen.org
Mission
Musopen provides recordings, sheet music, and textbooks to the public for free, without copyright restrictions.Read 9 Oct 2026 · musopen.org
Moonlight
Moonlight is presented as a free open-source macOS player with album, artist, song, composer and genre browsing, no account, no telemetry and no nag screens.Read 15 Oct 2026 · musopen.org
Music catalog
The website lets users browse royalty-free recordings, listen online, download music and save items for later.Read 15 Oct 2026 · musopen.org
Music library
The music catalog can be browsed by composer, performer, instrument, tag, form, or time period.Read 9 Oct 2026 · musopen.org
Music library connection
The Practice app connects to Musopen’s music library and lets users browse by composer, difficulty, or popularity.Read 9 Oct 2026 · musopen.org
Music licensing
Musopen says all music it hosts is royalty and copyright free and advises checking license icons for applicable restrictions.Read 9 Oct 2026 · musopen.org
Music studio app
Adagio is a web app for teachers to manage students, schedule lessons and performances, assign homework, and handle billing.Read 9 Oct 2026 · musopen.org
Practice and Adagio integration
Musopen describes Practice and Adagio as a combined teaching-tool suite.Read 15 Oct 2026 · musopen.org
Practice app
Practice tracks practice frequency and duration, supports goals and badges, and displays progress over time.Read 9 Oct 2026 · musopen.org
Practice community
Practice users can post questions about pieces and help other learners.Read 15 Oct 2026 · musopen.org
Practice music integration
Practice connects to Musopen's music library and supports discovery by composer, difficulty and popularity.Read 15 Oct 2026 · musopen.org
Practice tracking
The Practice app records practice duration, progress by week, month or year, individual-piece progress, goals and badges.Read 15 Oct 2026 · musopen.org
Praise: usability
Independent Android reviewers repeatedly describe Practice as easy to use, motivating, ad-free and useful for goals, charts, notes, metronome and recordings.Read 15 Oct 2026 · chrome-stats.com
Privacy and security
Musopen’s privacy policy says it uses commercially reasonable measures to protect personal information but cannot guarantee internet transmissions are completely secure.Read 9 Oct 2026 · musopen.org
Privacy collection
The privacy policy says Musopen logs IP address, user ID, pages and visit times and uses session and persistent cookies.Read 15 Oct 2026 · musopen.org
Privacy sharing
Musopen says it does not share personally identifiable information for other organizations' marketing, though service vendors may process it.Read 15 Oct 2026 · musopen.org
Radio
The Radio app provides free HD classical-music streaming for mobile or speaker use, with web listening also available.Read 15 Oct 2026 · musopen.org
Rating on Apple App Store
4.3 out of 5 from 4 reviewsRead 15 Oct 2026 · apps.apple.com
Rating on Chrome-Stats
3.70 out of 5 from 111 ratingsRead 15 Oct 2026 · chrome-stats.com
Rating on Google Play
3.6 out of 5 from 114 reviewsRead 15 Oct 2026 · play.google.com
Rights limitation
Musopen says it does not verify whether user-uploaded works are actually public domain, so users must assess rights independently.Read 15 Oct 2026 · musopen.org
Security statement
Musopen describes commercially reasonable safeguards but explicitly says internet transmission security cannot be guaranteed.Read 15 Oct 2026 · musopen.org
Self-hosting
The official pages reviewed provide no self-hosting deployment instructions or downloadable server package.Read 15 Oct 2026 · musopen.org
Sheet music
Users can browse sheet-music files for printing or online viewing.Read 15 Oct 2026 · musopen.org
Terms limitation
The terms grant only temporary personal, non-commercial viewing rights for website materials and prohibit copying, commercial use and mirroring.Read 15 Oct 2026 · musopen.org

Plans and prices

Lite Free Free 5 music downloads per day · Lossless audio · Early access to music · Studio: unlimited students, practice-session audio, automated invoicing Read 9 Oct 2026 · musopen.org
Lite Free 5 music downloads per day · lossless audio · early access to music · unlimited Studio students · student-session audio · automated invoicing Read 15 Oct 2026 · musopen.org
Member $55 a year $55 /year Unlimited downloads · Lossless audio · Early access to music · Studio: unlimited students, practice-session audio, automated invoicing Read 9 Oct 2026 · musopen.org
Member $55 a year $55 /year unlimited downloads · lossless audio · early access to music · unlimited Studio students · student-session audio · automated invoicing Read 15 Oct 2026 · musopen.org

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