Overview

Harmonia combines interactive exercises and advanced notation tools with an online dashboard for teaching. Its analysis engine evaluates written music in real time, flagging issues such as parallel fifths, poor spacing, and unresolved sevenths. That gives students feedback while they compose and gives teachers a way to review graded work in the cloud.

Notation playback, MIDI support, and harmony tools extend the work beyond written exercises. Teachers can add audio or video files and links to lessons, while progress tracking and class statistics help connect practice to course progress. The emphasis on notation and structured assessment makes Harmonia more relevant to theory instruction than to general music learning.

Key features

Composition feedback and assessment

Real-time analysis can help students spot theory and spacing problems as they write, rather than only after submission. Automatic test grading can reduce routine marking for teachers. The tradeoff is that this is not simply a self-guided practice library: graded feedback is routed to Harmonia’s cloud server for teacher review, so its assessment features are most useful in an instructor-led setting.

Coursework and teaching content

The dashboard covers courses, assignments, tests, grades, due dates, timed practice, and class statistics. Teachers also get hundreds of lessons and exercises, plus assignment generators for AP-congruent and advanced college material. They can build course materials with in-app score generators or import scores from MusicXML. Teacher accounts include all 371 Bach chorales rather than the 10 available otherwise, a meaningful distinction for instructors who use that repertoire in coursework.

Lesson media and practice

Teachers can embed audio or video files and links in lessons, and notation can be played back. Together with interactive exercises, MIDI support, harmony tools, and progress tracking, these features support a mix of score work and listening. Harmonia’s core strength remains written-music analysis, not a broad catalogue of music-learning topics.

Pricing

Harmonia uses a freemium model and offers a free trial. Free practice costs 0.00 USD per free and provides independent practice with advanced analyzing and feedback features. It is the natural starting point for an individual learner, but it does not include the course homework assignments and worksheets sold through Classroom Connect.

Classroom Connect is billed once per student, with homework assignments and worksheets for a course period of up to:

4 weeks: 20.95 USD per once
6 weeks: 22.95 USD per once
8 weeks: 24.95 USD per once
12 weeks: 28.95 USD per once
16 weeks: 34.95 USD per once
21 weeks: 44.95 USD per once
42 weeks: 74.95 USD per once
52 weeks: 84.95 USD per once

These are per-student charges, so a teacher should account for enrollment when budgeting. The term options suit defined courses, but the listed coverage is homework and worksheets for the selected period, rather than a recurring monthly subscription.

Testing Only uses custom pricing. Single-exam pricing is determined at the end of the testing period; rolling exams are calculated annually and charged every three months. That distinction matters for schools choosing between a one-off exam cycle and ongoing testing.

Platforms

Harmonia supports web, Windows, macOS, iOS, and Android. The browser version runs in Chrome, Firefox, Edge, and Safari, including Chrome on Chromebooks, which gives students several ways to access course work without being limited to a desktop app.

Who it's for

Harmonia is a strong fit for music teachers who need score-based assignments, automatic grading, and a central place to manage deadlines and grades. Its lesson library, assignment generators, and expanded Bach chorale access make it particularly suited to AP and advanced college instruction. Students benefit most when a teacher uses the course tools to review and structure their work.

Independent learners can still use the free practice plan and analysis features, but those seeking a self-study service focused mainly on ear training, rhythm, or a standalone theory course may prefer a more narrowly targeted option.

Pros and cons

Pros: Real-time score analysis identifies concrete theory issues, giving composers feedback during the writing process.
Pros: Course administration, automatic test grading, and cloud-based teacher review bring practice and assessment into one workflow.
Pros: Hundreds of lessons and exercises, assignment generators, MusicXML import, and all 371 Bach chorales give teachers substantial material to build from.
Cons: Classroom Connect is priced per student, so costs rise with enrollment even though each charge covers a defined course period.
Cons: The free plan is for independent practice; course homework assignments and worksheets are in the paid Classroom Connect plans.
Cons: Testing Only has custom pricing, and rolling exams are billed every three months after annual calculation, which is less straightforward to budget than the fixed course terms.

Alternatives

For a broader set of options, compare Music Theory Software. Note Noodle is a freemium option with a free plan and Android, Linux, macOS, web, and Windows support; its free tier includes 10 ear-training sessions per day, three personal Play Along uploads per month, and the first four lessons without an account. Choose it when those ear-training and Play Along limits better match the intended practice.

Complete Rhythm Trainer is another freemium option available on Android, iOS, macOS, web, and Windows. Musition is a paid alternative with a free trial. MyMusicTheory has a free plan with more than 100 free exercises and supports Android, iOS, and macOS. ToneSavvy is a web-based freemium option with a free plan and trial; its plan for up to 25 students costs 19.00 USD per month. Study Music Theory offers a free plan with a full course and all eight trainers, without ads or paywalls, on Android, iOS, and web. muted.io is available on Linux, macOS, web, and Windows, with a desktop app for a one-time 16.00 USD that includes 23 interactive music tools and a 30-day money-back guarantee. music21 is a free option for web, Windows, macOS, and Linux.

Verdict

Choose Harmonia if you teach or study music theory through written scores and want composition feedback tied to assignments, tests, and teacher review. Its combination of real-time analysis, course administration, and substantial teaching content is its clearest advantage. Look elsewhere if your priority is standalone practice in another focused area, or if per-student course charges do not suit your class budget.

	Clements Theory	Harmonia
Free plan	No	Yes
Free trial	Yes	Yes
Paid from	£3.92/mo	Free
Platforms	Web	Android, iOS, macOS, Web, Windows
Free plan	Yes	Yes
Interactive exercises	Yes	Yes
Notation tools	basic	advanced
Harmony tools	Yes	Yes
Rhythm practice	Yes
Supported platforms	web	web, windows, macos, ios, android
Progress tracking	Yes	Yes
MIDI support		Yes

Clements Theory vs Harmonia

Clements Theory

Harmonia