Convert music theory logic to Rust WebAssembly

[kako-jun]

Pull Request

📋 Summary

Type of Change:

• 🐛 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📚 Documentation update
• 🔧 Refactoring (no functional changes)
• ⚡ Performance improvement
• 🧪 Test improvements

🔗 Related Issues

Fixes #
Relates to #

📝 Changes Made

🧪 Testing

Test Coverage:

• Unit tests added/updated
• Integration tests added/updated
• Manual testing performed
• Benchmarks run (if applicable)

Test Results:

# Paste relevant test output here
npm test / cargo test / pytest / etc.

📚 Documentation

• Code is self-documenting with clear variable/function names
• Public APIs are documented with /// comments
• README.md updated (if needed)
• docs/ updated (if needed)
• CHANGELOG.md updated (if needed)

✅ Checklist

Before submitting this PR, please ensure:

Code Quality

• Code follows the project's style guidelines
• Linting passes (eslint/clippy/flake8/etc.)
• All tests pass
• Code builds without warnings

Testing

• New code has appropriate test coverage
• All existing tests still pass
• Edge cases have been considered and tested

Documentation

• Public APIs are properly documented
• Complex logic includes inline comments
• User-facing changes are documented

Breaking Changes

• Breaking changes are clearly documented
• Migration guide provided (if applicable)
• Version bump planned appropriately

🎯 Performance Impact

• No performance impact
• Performance improvement (include benchmark results)
• Potential performance regression (justified by benefits)

Benchmark Results (if applicable):

# Include before/after benchmark results
npm run bench / cargo bench / pytest-benchmark / etc.

🔍 Reviewer Notes

Focus Areas:

Questions for Reviewers:

📸 Screenshots (if applicable)

🚀 Deployment Notes

• No special deployment requirements
• Requires configuration changes
• Requires data migration
• Other:

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By submitting this PR, I confirm that:

• I have read and followed the Contributing Guidelines
• My code follows the project's coding standards
• I have tested my changes thoroughly
• I understand this will be released under the MIT License

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Project	Deployment	Preview	Comments	Updated (UTC)
sid-note	Ready	Preview	Comment	Nov 17, 2025 6:35am