Press release
Vienna, 24 October 2026

Truffle brings order to the tags of large music libraries on the Mac

The Mac app recognises tracks by their sound and through music catalogues and repairs titles, artists, covers, tempo and key: for any collection that has grown over the years, from the old iTunes library of the CD era to the DJ library.

Music libraries that have grown over many years are full of wrong and missing tags: tracks without a name or artist, missing covers, broken umlauts, the same song three times. Fixing that by hand works for fifty tracks, not for thirty thousand. Truffle – Music Tag Editor, available in the Mac App Store since 29 September 2026, identifies each track and proposes corrections field by field, each with its source.

Truffle asks eight sources: Apple/iTunes Search, MusicBrainz, Cover Art Archive, Deezer, Beatport, a web lookup, Apple’s audio recognition and its own audio analysis, which measures tempo and key on the Mac without an internet connection. It compares their evidence, discards what contradicts, and assembles one suggestion. Nothing is written until the user confirms it.

The app works with five libraries: the Apple Music/iTunes library, where it writes back to Music.app field by field; local folders with 17 file extensions, from mp3 via flac to aiff; and the collections of rekordbox, Serato and Traktor. For the DJ programs, repairs go into the audio files. Truffle never writes into a DJ program’s database, so cues, beatgrids and crates stay untouched, and tempo and key are only written on an explicit click.

Beyond tags, Truffle finds duplicates and shows side by side which copy stays and which goes; the file on the Mac always stays, and nothing is deleted without asking. It aligns albums by filling in missing album artists and years, unifying spellings, marking compilations and copying missing covers, with every change listed before it is written. Bulk edit sets one field across many tracks with a preview of every line. Every change is logged in History, the original is backed up first, and anything applied can be undone, one change at a time or as a whole session, even days later. Only deleting cannot be undone by Truffle.

“I built Truffle for my own collection first. It had grown over many years, and finding the right track mid-set had turned into guesswork. Now every suggestion shows me where it comes from, nothing gets written without my okay, and my cues stay exactly where they were!” says Marian Moritz Hildebrand, DJ and developer of Truffle.

FOR CLASSICAL COLLECTIONS

Truffle also recognises classical recordings by their sound, even when a file is only called “Track 07”. It suggests the work as it is listed for that recording, with catalogue numbers such as BWV or Op., plus performers, album and year, and it finds the cover of the recording, even when orchestra, choir and conductor are credited together.

PRICE AND AVAILABILITY

Truffle is a free download from the Mac App Store. The free version analyses 100 tracks and writes 20, with no feature locked. The full version is a one-time in-app purchase of €59.99 including VAT, with no subscription and free updates; in other countries the App Store sets the price in local currency. Truffle requires macOS 14 (Sonoma) or later and a Mac with Apple Silicon, and the app is available in 20 languages.

Mac App Store: https://apps.apple.com/app/id6806763735
Website: https://truffle-app.com

ABOUT TRUFFLE

Truffle is developed by Marian Moritz Hildebrand, an independent developer and DJ. The app has been available in the Mac App Store since 29 September 2026. It needs no account and has no telemetry, no advertising and no tracking.

PRESS CONTACT

Marian Moritz Hildebrand · mail@truffle-app.com
Screenshots, logo and fact sheet are part of the press kit at https://truffle-app.com/press/. Review codes for the full version are available on request.

Apple, Apple Music, iTunes and Mac App Store are trademarks of Apple Inc.; rekordbox, Serato, Traktor, Beatport and Deezer are trademarks of their respective owners.

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mail@truffle-app.com · https://truffle-app.com/impressum
