HarmonyBuilder review
A structured desktop workspace for chord analysis, harmony, voicing, and playback.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
HarmonyBuilder is computer-assisted music composition software for composers, arrangers, teachers, students, and serious amateur musicians. Its focus is structured chord and harmony work: users can explore chords and voicings, write four-part scores, generate chord progressions, harmonize melodies or bass lines, and review voice-leading and harmony errors. The application runs on Windows, macOS, and Linux systems that support Java, making it suited to desktop-based study and composition rather than mobile work.
Pricing is paid and includes a 28-day trial. The Basic plan costs $14 as a one-time purchase and includes four-part score writing, Chord Grid, Playback, and MIDI export. The Educational plan costs $49 as a one-time purchase and adds the Chord Grid, Checker Panel, and Error printing. The Professional plan includes the Builder Panel, Chord Selector, Voicing Generator, and melody and bass harmonization. An Institutional plan is also available. The published plan structure gives learners and educators distinct options, while the more advanced composition tools sit in the Professional tier.
HarmonyBuilder’s standout area is its combination of chord exploration and analysis. The Chord Grid contains 132 chords, while voicing generation, progression suggestions, playback, visual feedback, score printing, PDF output, and MIDI export support a workflow that moves from harmonic idea to reviewable score. That breadth makes it a strong fit for learners who want guided harmony analysis and for teachers working with written exercises. It is less suitable for musicians seeking a mobile app or a lightweight chord chart alone. Choose HarmonyBuilder for structured desktop harmony work; consider an alternative if mobile access is central to your workflow.
HarmonyBuilder pros and cons
- Where it wins
- Chord Grid includes 132 chords and progression suggestions.
- Checks voice-leading and harmony errors while providing visual playback feedback.
- Runs on Windows, macOS, and Linux with PDF and MIDI export.
- Where it doesn't
- There is no free plan.
- The software is desktop Java software, with no mobile apps.
- Advanced voicing and harmonization tools are tied to the Professional version.
HarmonyBuilder fact sheet, pricing and score →
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