beaTunes is a music-library management and audio-analysis application for Mac that works alongside Apple Music to extract acoustic properties — tempo, key, mood, and more — from every track in your collection. It transforms a passive song library into an intelligently tagged, deeply searchable catalog, making playlist curation feel effortless rather than arbitrary.
What is beaTunes?
beaTunes is a music analysis and library enrichment tool that connects to your Apple Music (formerly iTunes) library and reads the audio signal of every song you own. While Apple Music tracks play counts and ratings, beaTunes digs deeper — it measures BPM, detects musical key, assigns an energy mood, and renders a colour impression of each track's sonic character.
Think of it as a metadata archaeologist for your music collection. If you've accumulated thousands of ripped CDs, purchased downloads, and imported files over the years, many of those tracks probably carry incomplete or outright wrong tags. beaTunes processes them systematically and fills the gaps without requiring you to touch a single file manually. It's the kind of background work that makes your entire library noticeably more coherent after a single long session.
What does beaTunes do best?
Tempo and key detection are where beaTunes earns its place in the dock. The BPM engine is impressively accurate across pop, electronic, rock, and hip-hop, and — crucially — it flags low-confidence results rather than silently writing bad data. That honesty matters enormously when you're building playlists that need to flow.
The playlist generator is the real payoff for all that analysis. Instead of sequencing tracks by genre or release year alone, beaTunes can chain songs by tempo arc, harmonic key compatibility, or energy level — so a two-hour workout playlist actually builds intensity rather than lurching from 88 BPM to 145 BPM without warning. If you've used Mixed In Key for DJ prep, this will feel immediately familiar, but aimed squarely at everyday listening rather than club sets.
Tag cleanup is the app's underrated second act. It cross-references your library against online databases, surfaces duplicate files, flags missing artwork, and reconciles inconsistent album metadata. For anyone with an iTunes graveyard dating back to the early iPod era, a single beaTunes pass can turn hundreds of mystery tracks into properly named, properly attributed files.
Who should use beaTunes?
The obvious audience is serious home listeners and semi-pro DJs who build intentional playlists rather than leaning on Spotify's algorithms. But the metadata-cleanup side stretches that audience considerably: any Mac user who has maintained a local library for more than a few years will likely have enough tag debris to make the investment worthwhile on its own.
If your entire music life lives inside Apple Music's streaming catalogue and you never manage local files, beaTunes is overkill — Swinsian handles casual local playback beautifully without the analytical overhead, and Doppler is a joy for focused album listening. But if you own a collection and care about how one song flows into the next, nothing else on macOS matches what beaTunes does in a single application.
How does beaTunes compare to Mixed In Key?
Mixed In Key dominates professional DJ workflows: razor-sharp key detection, Camelot wheel notation, and deep integration with Rekordbox and Serato. beaTunes is broader in scope — BPM and key analysis sit alongside full library management, tag repair, duplicate detection, and playlist generation inside one app. Mixed In Key is a specialist tool; beaTunes is a generalist that covers most of what Mixed In Key does for Apple Music users who aren't running professional DJ software.
The two apps aren't really in direct competition. You could run both if you want Mixed In Key's precision for DJ exports and beaTunes's breadth for everyday library hygiene. For Mac users whose hub is Apple Music rather than a DJ controller, beaTunes is the more natural daily driver.
How much does beaTunes cost?
beaTunes is a paid application sold directly from the developer's website, with a free trial period so you can put the analysis engine through its paces before committing. tagtraum industries has kept the app actively developed and updated for well over a decade — a reassuring track record for software you're trusting with your entire music library. Check the official site for current pricing; upgrade terms for existing customers have historically been generous, which is the mark of a developer who takes long-term users seriously.
