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Adagio

adagio.org

From $5/mo Free plan WebiOSAndroidAPI
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Spec score 9.4 #1 of 26 in Music School Software

What it is

Adagio is a web and mobile app for music teachers managing classrooms or studios and keeping students involved between lessons. Teachers can schedule lessons, assign homework, keep class or lesson notes, and track practice time. In the Practice app, students can log sessions, notes, and personal to-do lists. They can also comment, use a social feed, and earn levels and points for practice sessions. Students can opt in to share practice sessions, assigned homework, goals, and notes with teachers. Adagio includes student records, attendance tracking, a student portal, and online payments. Invoices can be created manually or after a completed lesson, with PayPal payment options and email reminders for overdue bills. Its free plan is free; Premium is $5 a month. The Organization Plan supports multiple teachers and classrooms, administrative oversight, and shared class access. Adagio is available on Android, iOS, and the web.

Spec sheet

What it does
Adagio is a web and mobile studio-management application for music teachers that combines student practice tracking, scheduling, homework, notes, billing and communication.Read 14 Oct 2026 · adagio.org
Product
Adagio is a web and mobile app for music teachers to manage classrooms or studios and help students stay engaged between classes.Read 4 Oct 2026 · adagio.org
API
The homepage says users can bring current tools and connect data via API.Read 4 Oct 2026 · adagio.org
Security
The privacy policy says Adagio uses commercially reasonable measures to preserve the integrity and security of personal information and cannot guarantee internet transmission is completely secure.Read 4 Oct 2026 · adagio.org
Privacy
The privacy policy says Adagio does not share personally identifiable information with other organizations for their marketing or promotional use.Read 4 Oct 2026 · adagio.org
Support
The site provides a contact form and lists [email protected] in its terms and privacy pages.Read 14 Oct 2026 · adagio.org
Headquarters
Tarzana, California, United StatesRead 28 Sep 2026 · adagio.org
Maker
Adagio says it was created by the team behind Musopen.org and is developed by a California-based registered 501(c)(3) nonprofit.Read 4 Oct 2026 · adagio.org
Age requirement
The Terms of Use say users must be at least 13 years old.Read 4 Oct 2026 · adagio.org
API integration
Adagio says it can connect a user's existing tools and data through an API.Read 14 Oct 2026 · adagio.org
App stores
The maker says students can download the Practice app through the Apple or Google app stores by searching for Musopen.Read 4 Oct 2026 · adagio.org
Apple compatibility
The Practice app requires iOS 16.4 or later and is listed for iPhone and Apple Vision.Read 14 Oct 2026 · apps.apple.com
Apple privacy disclosure
Apple's listing says the app may track diagnostics and link contact information, audio data and diagnostics to users.Read 14 Oct 2026 · apps.apple.com
Billing
Invoices may be created manually or generated after completed lessons, with overdue email reminders and paid-versus-outstanding summaries.Read 14 Oct 2026 · adagio.org
Calendar
The calendar manages lessons and performances, supports day, week and month views, and sends reminders.Read 14 Oct 2026 · adagio.org
Communication
The feature set includes in-app messaging, notes and email communication among teachers, students and parents.Read 14 Oct 2026 · adagio.org
Company history
Wikipedia identifies Musopen founder Aaron Dunn, a May 2006 launch and Palo Alto, California operations.Read 14 Oct 2026 · en.wikipedia.org
Data handling
The privacy policy says collected information includes IP address, user ID, pages visited, cookies, names, email addresses and contact submissions.Read 14 Oct 2026 · adagio.org
Data sharing
Adagio says it does not share personally identifiable information for other organizations' marketing, while allowing service-provider sharing when necessary.Read 14 Oct 2026 · adagio.org
Documentation
The official help center contains getting-started, mobile-app, student, calendar, assignments, groups, feed, organization, notes, billing and newsletter guides.Read 14 Oct 2026 · adagio.org
Google Play distribution
Google Play lists at least 10,000 downloads and an October 1, 2026 update date.Read 14 Oct 2026 · play.google.com
Homework
Teachers can create assignments for one or multiple students, monitor completion status, group students and send automated reminders.Read 14 Oct 2026 · adagio.org
Licence and ownership
The terms describe Adagio code, interfaces and content as proprietary materials and prohibit reverse engineering, decompiling or disassembly.Read 14 Oct 2026 · adagio.org
Limit: goals bug
An Apple reviewer reported that entering a 120-minute goal incorrectly marked it complete after two minutes.Read 14 Oct 2026 · apps.apple.com
Limit: offline use
A Google Play reviewer reported that statistics and recording a practice session were unavailable offline.Read 14 Oct 2026 · play.google.com
Limit: timer behavior
Google Play reviewers reported timer problems around sessions longer than one hour; the developer replied that the issue was fixed.Read 14 Oct 2026 · play.google.com
Maker address
The privacy policy gives Adagio's contact address as 5227 Shirley Ave., Tarzana, California 91356.Read 14 Oct 2026 · adagio.org
Maker identity
Adagio says it was built by the educators, musicians and staff behind Musopen.org and is operated by a California 501(c)(3) nonprofit.Read 14 Oct 2026 · adagio.org
Nonprofit finances
Musopen's 2025 filing summary shows $98,660 revenue, $65,303 expenses and $88,435 net assets.Read 14 Oct 2026 · projects.propublica.org
Nonprofit status
ProPublica records Musopen as a 501(c)(3) arts, culture and humanities organization tax-exempt since May 2006.Read 14 Oct 2026 · projects.propublica.org
Organization accounts
The Organization Plan supports multiple teachers and classrooms, administrative oversight, and shared class access; the maker describes it as suited to schools or large studios.Read 4 Oct 2026 · adagio.org
Organizations
Organization accounts provide administrative rights, multiple classes, shared class access and moving students between classes.Read 14 Oct 2026 · adagio.org
Payment methods
Adagio supports digital invoice payments such as PayPal and manual tracking for cash or checks.Read 14 Oct 2026 · adagio.org
Practice companion app
The Practice app lets students log duration, repertoire, notes and to-do items, with shared practice data appearing in Adagio after opt-in.Read 14 Oct 2026 · adagio.org
Practice tracking
Teachers can view how often students practice, inspect class or individual activity, and listen to practice recordings.Read 14 Oct 2026 · adagio.org
Praise: practice analytics
A Google Play reviewer praised daily tracking, session notes, piece tracking, metronome, recordings and weekly, monthly and yearly charts.Read 14 Oct 2026 · play.google.com
Rating on Apple App Store
Practice by Musopen is rated 4.3 out of 5 from 4 ratings.Read 14 Oct 2026 · apps.apple.com
Rating on Google Play
Practice by Musopen is rated 3.7 out of 5 from 109 reviews on the displayed ratings section.Read 14 Oct 2026 · play.google.com
Reports
Adagio can generate reports on student progress and attendance for teaching analysis.Read 14 Oct 2026 · adagio.org
Scheduling automation
Calendar scheduling can automate invoices, reminders, student self-booking, change or cancellation requests and fee policies.Read 14 Oct 2026 · adagio.org
Security statement
The privacy policy says Adagio uses commercially reasonable measures to protect personal information but cannot guarantee internet transmissions are completely secure.Read 14 Oct 2026 · adagio.org
Student engagement
The guide says students can use comments, a social feed, and levels and points for each practice session.Read 4 Oct 2026 · adagio.org
Student motivation
The product supports weekly or one-time goals, practice notes, comments and likes on practice sessions.Read 14 Oct 2026 · adagio.org
Student onboarding
Students can be added individually, in bulk by email, or by searching for a teacher through the Practice app.Read 14 Oct 2026 · adagio.org
Teaching tools
The getting started guide lists lesson scheduling, homework assignments, class or lesson notes, automated billing, and invoices.Read 4 Oct 2026 · adagio.org
Terms limitation
The service is provided as-is and as-available, with aggregate liability capped at the greater of $1,000 or fees paid in the prior 12 months.Read 14 Oct 2026 · adagio.org

Plans and prices

Free Plan Free $0 USD/mo Unlimited students · Calendar · Lesson scheduler · Homework · Goals · Class feed · Billing · Free website Read 4 Oct 2026 · adagio.org
Free Plan Free $0 USD/mo Track practice time · Unlimited students · Calendar · Lesson scheduler · Assign homework · Set goals · Class feed · Billing · Free website Read 14 Oct 2026 · adagio.org
Premium plan $5 a month $5 USD/mo All Free Plan features · Automated billing and invoices · Custom domain support · Newsletters · Practice audio · Free Musopen Pro membership Read 4 Oct 2026 · adagio.org
Pro $5 a month $5 USD/mo All Free features · Automated billing and invoices · Custom domain · Newsletters · Practice-session audio · Free Musopen Pro membership Read 14 Oct 2026 · adagio.org
Organization $10 a month $10 USD/mo All Pro features · Unlimited classes · Administrative control · Multiple teachers per classroom · Shared class access · Move students and teachers between classes Read 14 Oct 2026 · adagio.org

Every Adagio plan and price →

Strong points and limits

Strong points

  • Tracks student practice time and sessions.
  • Includes scheduling, homework, notes, and billing tools.
  • Students can opt in to sharing practice data.
  • Available on Android, iOS, and the web.

Limits

  • Users must be at least 13 years old.
  • Practice data sharing requires student opt-in.
  • Premium costs $5 a month.

Who it suits

Adagio suits music teachers who need tools for lessons, practice tracking, homework, and billing. Its Organization Plan is described as suited to schools or large studios.

Adagio in depth

Read the full write-up

Adagio is a music-studio management service for teachers coordinating lessons, student practice, and billing. It is a strong fit for independent teachers who want broad classroom tools without a subscription, and for larger studios that need shared administration. Its free plan is unusually capable; automated billing and invoices are the clearest reason to pay.

Overview

Adagio brings teaching and studio administration together across web, Android, and iOS. Teachers can manage students and lessons, while students have a separate Practice app for work between classes. The result suits studios that want classroom organization and student engagement in one service, though practice records are shared with teachers only when students opt in.

Key features

Scheduling, homework, lesson notes, goals, a calendar, and a class feed cover the recurring work around lessons. Teachers can track practice time; students can log sessions, notes, and personal to-do lists in the Practice app. Comments, a social feed, and points and levels for practice sessions offer ways to keep students involved between classes. The opt-in requirement gives students control over sharing, but it also means teachers cannot assume they will see practice logs or assigned work.

Billing supports manual invoices as well as invoices generated after a completed lesson, with digital payment options such as PayPal and email reminders for overdue invoices. That is useful for routine collections, but automated billing and invoices are Premium features. The homepage also describes API connections for bringing existing tools and data into Adagio.

The Organization Plan supports multiple teachers and classrooms, administrative oversight, and shared class access, making it relevant to schools and large studios rather than a solo teacher. Students can download the Practice app through Apple or Google app stores by searching for Musopen.

Pricing

PlanPriceWhat it includesFree Planfree (billed $0 USD/mo)Unlimited students, calendar, lesson scheduler, homework, goals, class feed, billing, and free websitePremium plan$5 a month (billed $5 USD/mo)All Free Plan features, automated billing and invoices, custom domain support, newsletters, practice audio, and free Musopen Pro membershipOrganization PlanCustom pricingMultiple teachers and classrooms, administrative oversight, and shared class accessThe Free Plan is a practical starting point for solo teachers: it allows unlimited students and includes scheduling, homework, goals, billing, and a free website. Premium at $5 a month keeps those features and adds automation, custom domain support, newsletters, practice audio, and Musopen Pro membership. It is the sensible upgrade for teachers who want less invoice follow-up or those added tools; billing can still be handled manually on the free tier. Studios that need multiple teacher accounts and oversight should consider the Organization Plan, which uses custom pricing.

Platforms

Adagio runs on web, Android, and iOS. The student Practice app is distributed through the Apple and Google app stores under the search term Musopen.

Who it's for

Independent music teachers get the most straightforward fit: unlimited students and core classroom administration come without a monthly charge. Teachers who value automated invoicing, custom-domain support, newsletters, or practice audio have a clear $5-per-month step up. Schools and large studios can use the Organization Plan's multiple-teacher and administrative structure. Adagio is less suitable where a teacher needs guaranteed access to student practice records, since students choose whether to share them.

Pros and cons

Pros: The Free Plan combines unlimited students with scheduling, homework, goals, a class feed, billing, and a website, avoiding a student cap for growing solo studios.

Pros: Premium adds automated billing and invoices for $5 a month while retaining all free features.

Pros: Organization accounts support multiple teachers, classrooms, oversight, and shared access, addressing needs beyond a one-teacher studio.

Cons: Automated billing and invoices are reserved for Premium, so free users must rely on manual billing.

Cons: Practice data sharing depends on student opt-in, limiting what teachers can see when students decline.

Alternatives

Music Lesson Scheduling Software is a directory of options to compare if you want to look beyond Adagio.

CogNote has a free self-hosted plan with unlimited students and lessons, and describes itself as built by a working piano studio for daily use; consider it if self-hosting or that studio-focused origin matters to you.

Harness offers a free web Hobby plan for up to five students, with calendar, scheduling, attendance, family portal, transaction ledger, and income and expense tracking; it may suit a small roster that wants those financial tools.

Nova Music has a free iOS and web plan capped at 10 students, with scheduling, group lessons, basic attendance, messaging, portal, and 100 MB storage; choose it if that smaller cap and group-lesson support fit your studio.

Clefwise offers a free plan for three students with scheduling, invoicing, online payments, a parent portal, and lesson notes; it may fit a very small studio that wants those functions at no cost.

My Music Staff is a paid Android, iOS, and web option at $14.95 a month for one teacher account, with additional teachers or administrators at $4.95 a month each; consider it if a paid service with a defined per-account cost suits your staffing needs.

AMES has a free plan and charges a 1.25% transaction fee on successful payments at its standard starting rate; consider it if payment-linked fees are preferable to Adagio's monthly Premium price.

DuetStudio offers a free web plan with unlimited active and inactive students, scheduling, notes, assignments, practice tracking, a portal, and manual invoicing; it may suit teachers prioritizing those tools without a paid plan.

Legato is a paid Android, iOS, and web option at $19.99 a month, with unlimited students, calendar views, automated Stripe billing, and Legato AI; consider it if those paid features are the better match.

Verdict

Adagio is an easy recommendation for independent music teachers who want a full classroom toolkit without paying per student, and for larger studios that need shared organization. The strongest reason to choose it is the breadth of its unlimited-student free plan; look elsewhere if student practice data must be visible by default or if another service's particular billing or studio workflow better suits your operation.

Verdict

Adagio brings lesson administration, student practice tools, and billing into one service. The free plan covers core classroom functions, while automated invoices and other listed Premium features require the paid plan.

Where Specifiction places it

Alternatives to AdagioAll alternatives →