Orchestra

A desktop application for synchronizing music libraries between drives — NAS, DAP (digital audio player), laptop, or any mounted volume. Built with Tauri v2, Svelte 5, and Rust.

Features

Library

• Library Browser — Scan any directory and browse by Artist, Album, Genre, or Folder with full metadata (title, duration, format, size)
• Contextual Search — Search filters contextually based on the active view mode, matching at the top-level grouping while preserving the tree structure
• Browse / Manage Tabs — Browse tab for searching and playback, Manage tab for library maintenance (rescan, duplicates, metadata report, statistics)
• Duplicate Detection — Scan for duplicate tracks by content hash and review/remove them
• Metadata Report — Flag tracks missing key metadata fields (title, artist, album, album art)
• Metadata Editor — View and edit track metadata individually or in bulk for an album, writing changes back to audio files
• Library Statistics — Dashboard showing format breakdown, genre distribution, total size, artist/album/track counts, and average bitrate
• Rescan — Re-scan a loaded library to pick up new, changed, or deleted files incrementally

Playback

• Music Playback — Play individual tracks or full albums directly from the library
• Playlists — Create, manage, and reorder playlists with export to M3U/PLS formats
• Play Queue — View the current play queue, skip ahead, and reorder or remove upcoming tracks
• Visualizations — Real-time audio visualizations (waveform, frequency spectrum, radial) via Web Audio API
• Equalizer — 10-band graphic EQ with presets (flat, bass boost, vocal, etc.) and manual per-band adjustment

Sync

• Sync Profiles — Create named profiles linking a source and target directory, with configurable sync mode and exclude patterns
• One-Way Sync — Mirror source to target: adds, updates, and removals
• Two-Way Sync — Bidirectional sync with baseline-based three-way comparison to detect which side changed
• Sync by Album — Select individual albums to sync, not just entire artists
• Conflict Resolution — When both sides changed, choose per-file: keep source, keep target, keep both, or skip
• Live Progress — Real-time file-by-file progress with expandable detail panel and cancellation support
• Safe Writes — Copy-then-rename pattern prevents partial files on crash or cancel
• Eject Device — Safely unmount a connected device directly from the app
• Exclude Patterns — Glob-based filtering to skip files (e.g., *.tmp, .DS_Store)

UI

• Light / Dark Mode — Light and dark themes with system appearance detection and manual override
• Global Status Bar — Expandable progress bar showing current file, files completed/total, bytes transferred, and elapsed time

Supported Formats

FLAC, MP3, AAC/M4A, WAV, ALAC, OGG, OPUS, WMA

Prerequisites

• Node.js >= 18
• Rust >= 1.70
• Platform-specific Tauri v2 dependencies — see Tauri prerequisites

Getting Started

# Install dependencies
npm install

# Run in development mode (frontend HMR + Rust backend)
npm run tauri dev

# Build for production
npm run tauri build

Running Tests

# Rust unit tests (from project root)
cd src-tauri && cargo test

How Two-Way Sync Works

After each successful sync, the app snapshots the state (content hash, modification time, size) of every file on both sides. On the next sync, it performs a three-way comparison:

Tech Stack

• Backend: Rust with Tauri v2, rusqlite (bundled SQLite), lofty (metadata), blake3 (hashing), walkdir
• Frontend: Svelte 5, TypeScript, Vite
• IPC: Tauri commands with Channel-based progress streaming

License

MIT