Every tool in MLT 2.0, and what it actually does.

The problem. You buy or download a batch of tracks, they land in Downloads, and they just sit there. Untagged, unsorted, not in Serato. That pile is exactly how libraries turn into a mess in the first place.

Drag your new tracks into the drop zone — MP3, M4A, FLAC or WAV. MLT reads the tags and shows you a review screen with every track's title, artist, year and genre, flagging any duplicates so you don't add the same tune twice. Fix anything that's wrong, then hit Add to library: it copies the files into your main music folder, organises them, adds them to Serato, and drops them into a new crate so you can find them straight away.

The problem. The worst happened. New laptop, or you wiped the old one. You've got your MLT backup on a drive — now you need the whole library back, exactly how it was.

Plug the drive in and choose your backup folder. Here's the clever part: if that backup came from a different laptop, MLT detects it and relinks every file path so your library works on this machine — no orange tracks, no broken crates. You get a full plan first: how many tracks, when it was made, and exactly what happens to every file. Nothing gets deleted, and it saves a safety copy of your current library before it starts.

The problem. Loads of DJs have years of music and playlists locked inside iTunes or Apple Music. DJing out of it is fragile, and moving all of it into Serato properly — with the playlists — is a nightmare to do by hand.

MLT reads your iTunes library and playlists, then you pick where your music lives from now on. Choose Move to take tracks out of the iTunes folder completely, or Copy to leave your originals so Apple Music keeps working — the safer option if you're not ready to cut the cord. Tick to turn playlists into Serato crates and switch iTunes off inside Serato. A live "what will happen" list updates as you go, there's a full pre-flight summary before it runs, and a Restore option that puts everything back.

The problem. Everything in Serato depends on your tags. If your genres are blank, your artists are wrong and your years are missing, you can't search properly, you can't build smart crates, and you can't find anything fast.

Load your tracks from Serato, a folder, or drag them straight in. "See all suggestions" instantly proposes genres and years across your whole library and you apply them with a click; "Scan" looks each track up across online sources one by one — slower, but great for a small batch you really want to get right. Audio Recognition is the Shazam-style option: if a track has no info at all, MLT identifies it by its actual sound. Nothing gets written until you review it. Then the Cues tab sets one cue style across a whole crate in one go, instead of you doing every track by hand.

Close Serato before you apply cues, so nothing clashes while MLT writes.

The problem. You've got a .crate file — from an old drive, a backup, or another DJ sent it to you. But when you load it, the tracks don't link up, because the actual music files live somewhere else on your computer. So the crate's useless.

Drag the .crate file in and MLT reads the track list inside it, showing you how many tracks it's looking for. Hit "Search my computer" and it hunts down every one by filename — across your whole machine and any external drives you've got plugged in. It shows you what it found and what it couldn't, and if some tracks are on an external drive or scattered outside your main folder, it offers to copy or move them in so the crate always works, even when that drive's unplugged.

The problem. If you play dancehall you know the deal: loads of different songs are built over the same riddim. Mid-set you want to pull up every cut over a riddim instantly — but finding them all in your library, song by song, is a nightmare.

Riddim scans your library and finds every track that belongs to a known riddim, then lays them all out for you to review. Configure what you want: tag every track with its riddim name, build a crate for each riddim, or both. Pick which tag field it writes into (Grouping is the recommended one) and group everything under a parent crate like "MLT Dancehall". Preview every change before you commit, hit Apply to Serato, and you've got a crate for every riddim in your collection.

Riddim writes into your actual files — review your changes first, because it can't be undone from inside the app.

The big one. Everything above fixes one part of your library. This does the whole lot in one go — it's the flagship. If you've got a messy library and you just want it sorted, this is it. On the home screen it's called "Organise My Library Automatically".

It starts with a free scan that shows exactly what needs fixing — how many missing tracks you've got, how scattered your folders are, how many rough duplicates, and how many genres need cleaning up. Then choose "Do it for me" and it runs every step automatically: relinks your missing tracks, gathers your files into one place, flags duplicates, fixes your genre tags and builds a smart crate for every genre. Or "Walk me through it" — a step-by-step guide through each tool yourself, using MLT's recommended settings. You see a full plan first, including a preview of exactly how your library will look in Serato and Finder afterwards. And if you don't like the result, there's an Undo that puts your tags, files and Serato library back exactly how they were.

Landing in a future beta — it's not in the build yet. The scan shown here is from an early version.