What is multi-preview?

Upload a track and hit 'Compare 4 styles': a snippet from the middle of your track (24 seconds) is mastered in parallel in four styles — EDM, Pop, R&B and Streaming Standard. In ~20 seconds you switch between versions on the fly and pick the character that fits.

Why is the comparison honest?

Playback loudness is matched across styles: the EDM version is objectively louder (−9 LUFS vs −14 for Standard), and without matching it would always seem 'better'. We attenuate the louder versions down to the quietest one — you compare processing character, not level.

How much does it cost?

Free, up to 6 multi-previews per day. It's a demo mechanic: like a style — run the full master as usual (3 basic per day free, or 1 token for PRO).

Do competitors have this?

eMastered shows 2 variants, everyone else shows one. Four parallel styles with instant honest switching is currently ours alone: our DSP engine renders a styled snippet in seconds, while each variant costs ML-based competitors far more.

Multi-Preview: Your Track in 4 Mastering Styles at Once — in 20 Seconds

2026-07-19 · Magic Master

The most common beginner question: "which style should I pick for my track?" It used to cost several full mastering runs to answer. Now it costs one click: "⚡ Compare 4 styles".

How it works

Upload a track and hit the button — a snippet from the middle (24 seconds) goes into parallel mastering in four styles: EDM (dense club), Pop (commercial balance), R&B (warm mids) and Streaming Standard (−14 LUFS).
In ~20 seconds four chips appear with the genres and their LUFS. Switching is instant, from the same playback position.
Like a style — clicking its chip selects it in the genre grid: just hit "Start mastering".

Honesty built in

Styles are mastered to their genre loudness targets (EDM −9, Standard −14), but playback is matched to the quietest version — otherwise the loud one would always win, and the comparison would be meaningless. Same "= loudness" principle as our A/B player.

Why only we can do this

The secret is speed: our DSP engine (no heavy neural nets at render time) masters a styled snippet in seconds, and four styles run in parallel. eMastered shows two variants; LANDR and the rest show one. Four honestly loudness-matched styles in 20 seconds is a unique market offering today.

For developers: POST /api/v2/multipreview (free, up to 6/day), pass your own set of 2–6 styles — docs.

Try it: magicmaster.pro/app?lang=en — upload a track and hit "⚡ Compare 4 styles".

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