FretCarta application, Italian copy, calculations and generated fretboard SVG: original independent implementation. No Guitar Scientist source, CAGED/private/community diagrams, audio, artwork or proprietary scale fingering library copied. Shared events/common are project-owned modules.

Public mature workflow research: https://www.editor.guitarscientist.com/ and https://editor.guitarscientist.com/tutorial/scales-panel. Price and registration counts relate to that full platform, not this tool's paid demand. No external runtime library/fonts/assets.

Build-only Vite8.3.2 MIT and transitive dependencies retain their licenses; package-lock pins registry sources only.