Lyric Fever
The Best Lyrics Experience for Spotify & Apple Music on macOS. It Just Works.
Installation
Manual
Download the DMG file here.
Homebrew
Run brew install lyric-fever
Screenshots
lyricfeverad.webm
Features
- Automatic Lyric Playback on Menubar
- Fullscreen Mode (Modeled after Apple Music’s fullscreen view)
- Karaoke Mode (Lyric popup that stays on screen)
- Karaoke Mode customization (font color, etc)
- Lyric Translation (using Apple’s on device APIs)
- Offline caching! Lyrics are automatically stored offline efficiently using CoreData
- Play some music on the Spotify / Apple Music app and watch the lyrics play on the menu bar automatically.
- Lyrics fetched from Spotify, LRCLIB, and NetEase as a backup lyric provider
- Simplified Chinese language support in app UI, thanks to @InTheManXG
![LyricFever Promo Vid]
Requirements
- macOS Sequoia or higher
- Spotify Desktop Client (if using Spotify)
Technical Details
- UI is built using SwiftUI.
- The lyrics are updated and fetched using Swift Concurrency and Swift Tasks
- The lyrics are stored into disk using CoreData.
- I interface with Spotify & Apple Music using their AppleScript methods as well as by subscribing to their playback state change notifications.
- I interface with Spotify and Apple Music’s AppleScript methods by using Apple’s provided ScriptingBridge interface.
- I additionally use private APIs to get the currently playing Apple Music song’s iTunes ID, and use MusicKit to map that to an ISRC code
- I map Apple Music songs to equivalent Spotify ID using ISRC to display Lyrics fetched from Spotify for either platform
- Lyrics are fetched from LRCLIB as a backup when Spotify fails
- I fetch the song “background color” with each lyric, and the color is used for the karaoke mode window background
- Songs translated using Apple’s Translation API.
- The fullscreen view uses a custom mesh gradient and extracts colors from the album art using ColorKit
- Spiritual successor to LyricsX (95% more efficient, 0.1% CPU usage of Lyric Fever vs 3% of LyricsX)
- Technical write-up coming soon
Translation Help
Crowdin Translation website
Please open a GitHub issue request to translate to more languages. Thank you very much.
Other Contributors
Acknowledgements / Special Thanks
- Sparkle: For app updates
- Amplitude: For app analytics
- Spotify: The music platform this project depends on! (for playback, for lyrics)
- Apple Music: Another platform that this project depends on
- ColorKit-macOS: My port of ColorKit for macOS
- Cindori for their blog post on writing an NSPanel view for SwiftUI
- autozimu for https://github.com/autozimu/StringMetric.swift, used to determine how similar NetEase search results are from search query
- tranxuanthang for LRCLIB, an open source Lyric library. Used when Spotify fails.
- NetEase for their Lyrics, used when LRCLIB and Spotify fail.
- fatbobman for ObservableDefaults
- https://neteasecloudmusicapi-ten-wine.vercel.app for their NetEase API
- LyricsX/ddddxxx for their ChineseConversion class (SwiftlyOpenCC)
- sindresorhus for KeyboardShortcuts
- f728743 for the mesh gradient view.
- jayasme for the LRC Lyric Parser I used as a base
- MusicBrainz & the CoverArtArchive projects for their MBID and Cover Art APIs (used for non-spotify / local files)
- LyricsX/MxIris for their Spotify TOTP fix and NetEase lyric provider
- Mecab-Swift by shinjukunian for the excellent Japanese Romanization
- Christian Selig for his efficient image color averaging technique
- Various StackOverflow snippets
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