Freedom report

Two barsScore 6.4

  • Free tierA free tier is on its own pricing page
  • Open codeNo open-source code on record
  • Runs widely1 of 6 device platforms
  • DocumentedPlans, terms and facts published

Neirocca is a web-based site for learning music theory by listening to and playing examples. Its 28 browser tools cover chords, melody, rhythm, analysis and transposition, and each tool plays when tapped. Chord resources include a diatonic chord reference, chord finder, progression player and builder, plus a mood-based progression generator. Melody and ear tools include ear training, dictation training, scale conversion, a step sequencer and a melody note guide. Rhythm options include a pattern dictionary, rhythm ear training, a metronome and tap tempo. Analysis tools cover key finding, chord progression analysis, Roman numeral analysis, cadence training and a part-writing checker. The site also lists 66 articles. Neirocca describes learning paths for beginners interested in composing and listeners who want to understand music more deeply. It includes interactive exercises, basic notation, harmony and rhythm tools, and progress tracking. The service is free of charge, with no free trial listed. Its privacy policy says Google Analytics 4 cookies are used for anonymous traffic data and that personally identifiable information is not collected through GA4. The operator may change, add or suspend services without prior notice.

Who it is for

Neirocca suits beginners interested in composing and listeners seeking to understand music theory. It is also relevant to learners looking for browser-based exercises across chords, melody, rhythm and analysis.

What is good

  • 28 browser-based tools cover five music-theory areas.
  • Tools play examples when tapped.
  • Lists 66 learning articles.
  • Free of charge.

What to know first

  • Available platform is web.
  • Operator may change or suspend services without prior notice.
  • Uses Google Analytics 4 cookies for anonymous traffic data.

Verdict

Neirocca brings playable examples, exercises and articles together in a free web resource. Its listed tools span several areas of theory, while the terms reserve the operator’s right to change or suspend services.

Get started with neirocca

  1. Visit the Neirocca website.
  2. Open a browser based tool or an article.
  3. Tap a tool to hear its musical example.
  4. Follow a learning path for composing or deeper listening.

Questions about neirocca

Is Neirocca free?

Yes. Its Free plan is listed at 0.00 USD per free, and the site describes its tools and articles as free of charge.

Which platforms does it support?

Neirocca's tools are browser based and the listed platform is web.

What kinds of tools does it offer?

Its 28 tools cover chords, melody, rhythm, analysis, and transposition. Examples include a chord finder, ear training, metronome, and key finding.

Who operates Neirocca?

It is built and operated by Chathello, represented by Shoya Kihara, at an address in Fukuoka, Japan.

Does Neirocca connect with external products?

The opened product pages describe browser based tools and do not state integrations with external products.

What does Neirocca say about privacy analytics?

Its privacy policy says it uses Google Analytics 4 cookies for anonymous traffic data and does not collect personally identifiable information through GA4.

neirocca plans and pricing

All plans
Free Free Interactive music theory tools and articles · free of charge neirocca.com · 7 Oct 2026

Compared on music theory software

Free plan
Yes
Interactive exercises
Yes
Notation tools
basic
Harmony tools
Yes
Rhythm practice
Yes
Supported platforms
Web
Progress tracking
Yes

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