Interactive Music Theory Lab is a free web app for learning music theory through chord building, progressions, melody composition, and songwriting. Its Theory Academy offers interactive lessons, guided tutorials, and exercises on topics from intervals to voice leading. Chord Lab combines a chord builder and library with piano keys, staff notation, voicings, and inversions. Scale Explorer covers more than 100 scales, showing patterns on piano and fretboard. Composition Studio lets users arrange progressions and song sections by dragging them into place, use theory-based suggestions, and export MIDI or PDF. The interface also lists MIDI and MusicXML import and export, along with PDF and audio export. Users can upload MP3, WAV, OGG, M4A, or FLAC files to detect chord progressions. The maker says detection works best with clear recordings and may be less accurate on complex mixes. The site requires no account. The maker describes the tool as guidance for aspiring musicians and songwriters, rather than software that writes the song for them.
Who it is for
It suits aspiring musicians and songwriters who want to explore theory while composing or studying musical ideas. It may also help learners who want to analyze chord progressions in audio, keeping in mind the stated accuracy limitation for complex mixes.
What is good
- Free to use with no account required
- Chord builder includes voicings and inversions
- More than 100 scales with piano and fretboard patterns
- Composition Studio exports MIDI and PDF
- Audio chord detection supports five listed formats
What to know first
- Chord detection may be less accurate on complex mixes
- The maker says the app has bugs
- It provides songwriting guidance rather than writing songs
Verdict
Interactive Music Theory Lab brings lessons, notation, harmony tools, and composition features together in a browser. Its stated limits include possible bugs and reduced chord-detection accuracy on complex recordings.
Get started with Interactive Music Theory Lab
- Visit https://imtl.net/
- Open the web app; an account is not required
- Choose Chord Lab, Scale Explorer, Theory Academy, or Composition Studio
- Upload an MP3, WAV, OGG, M4A, or FLAC file for chord-progression detection
Questions about Interactive Music Theory Lab
Is Interactive Music Theory Lab free?
Yes. Its Free plan is listed at 0.00 USD per free, and the maker says no account is required.
Which platforms can I use it on?
It is available on the web.
Can I import and export MIDI or MusicXML?
The interface lists MIDI and MusicXML import and export. It also lists PDF and audio export.
Which audio formats can I upload for chord detection?
MP3, WAV, OGG, M4A, and FLAC are supported. The maker says detection works best with clear recordings and may be less accurate with complex mixes.
Does the app write songs for users?
The maker describes it as offering guidance and suggestions, not writing the song for the user.
Where can I send bug reports or feature requests?
The maker directs users to GitHub for feature requests and bug reports, and says there are bugs.
Interactive Music Theory Lab plans and pricing
All plansCompared on music theory software
- Free plan
- Yes
- Interactive exercises
- Yes
- Notation tools
- advanced
- Harmony tools
- Yes
- MIDI support
- Yes
- Supported platforms
- Web
- Progress tracking
- Yes
