# Page Not Found

The URL `files/-LzCb2uL_Jvu_am9FaIG` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Only colors visible in the song](https://guide.tonaly.app/troubleshooting/only-colors-visible-in-the-song.md)
- [The app asks me to pay again](https://guide.tonaly.app/troubleshooting/the-app-asks-me-to-pay-again.md)
- [The circle displays "H" instead of "B"](https://guide.tonaly.app/troubleshooting/the-circle-displays-h-instead-of-b.md)
- [Auto inversions (voice-leading)](https://guide.tonaly.app/settings/musical-preferences/auto-voice-leading.md)
- [The circle displays 4-note chords such as Gm7 or C△](https://guide.tonaly.app/troubleshooting/the-circle-displays-4-note-chords-such-as-gm7-or-c.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://guide.tonaly.app/troubleshooting/only-colors-visible-in-the-song.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://guide.tonaly.app/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://guide.tonaly.app/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/troubleshooting/only-colors-visible-in-the-song.md`).

You may also use `Accept: text/markdown` header for content negotiation.