This directory follows major pages in current D:\ECHO source and the tutorials on this site. A route or stored setting in source does not prove it ships in your installed build. Steam, website, Pro entitlement, OS, hardware, and server capabilities affect availability. Start with Features Enabled by Default.
| Feature | Guide |
|---|
| Folder import, Inbox, Songs | Import Audio Sources, Browse and Search |
| Albums, Artists, Genres, Folders, search and sorting | Browse and Search, Library Management |
| Tags, artwork, album identification, duplicates | Library Maintenance |
| Audio CDs and CUE albums | Audio CDs and CUE |
| osu! and Geometry Dash folders | Game Music Folders |
| NAS, WebDAV, Jellyfin, Emby, Subsonic | Remote Sources, Cloud Drives |
| Feature | Guide |
|---|
| Everyday player | Daily Listening |
| Queue, shuffle, repeat, transitions, auto-fill | Playback Queue and Modes |
| Playlists, likes, history and review | Playlists, Likes, and History |
| Rule-based playlists | Smart Playlists |
| LRC, lyric candidates, translations, offsets | Lyrics |
| Tray, mini player, media keys, hotkeys | Desktop Controls |
| Home cards, themes, sidebar, wallpaper, fonts, accessibility | Home and Appearance |
| Feature | Guide |
|---|
| No sound, device selection, volume | Audio Output, Volume Basics |
| Windows shared, exclusive, ASIO | Local Output, Windows Audio, ASIO vs Exclusive |
| EQ, ReplayGain, DSP | EQ, DSP Beginner, DSP Simple |
| SRC, upsampling, DSD/DoP | Upsampling, DSD |
| HQPlayer and USB DAC | HQPlayer, USB DAC Drivers |
| DLNA, AirPlay, Connect | Frontend Devices, DLNA, AirPlay |
| Feature | Guide |
|---|
| User-managed radio streams | Internet Radio |
| Listening rooms and shared audio | Listening Rooms |
| Steam Cloud, achievements, presence, stats, leaderboards | Steam Edition |
| Subscribe, enable, or repair Workshop items | Steam Workshop |
| Themes, lyric scenes, visualizers, DSP presets, sandbox plugins | Workshop SDK, Plugins |
| AI themes and appearance | AI Theme, Settings |
| Discussion, announcements, bug reports | Community and Feedback |
If an entry is missing, check your edition, Pro entitlement, OS, hardware, network service, and release status. The Steam distribution excludes legacy main-process plugins, third-party streaming-platform search/download, and the MV route even when old code remains in the repository. See Troubleshooting or Current Source Architecture.