Test your music in different ways

Independent BPM and pitch control, instant key detection, audio quality analysis, and effortless track rename — all in one beautifully simple Mac app.

Download on Mac App Store

Free 30-day trial — no credit card required

Everything you need. Nothing you don't.

Six tools, one focused app, built for people who care about how their music actually sounds.

Independent BPM

Speed up or slow down tracks without touching pitch, with sample-accurate precision.

Independent Pitch

Shift pitch in semitones or cents while tempo stays exactly where you set it.

Camelot Wheel

Instant key detection mapped to the Camelot wheel for harmonic mixing at a glance.

Audio quality detection

Spot low-bitrate and transcoded files before they ruin your set.

Track rename

Clean up messy filenames and tags in seconds, right from your library.

Waveform display

A crisp, responsive waveform view that makes cueing and beatmatching effortless.

Tempo & Pitch

Speed and key, fully independent.

Push the tempo without your vocals turning into chipmunks. elian decouples BPM and pitch so you can adjust each one separately, with studio-grade time-stretching that stays clean at any setting.

Harmonic Mixing

Know every key, instantly.

elian detects the musical key of every track and maps it to the Camelot wheel, so you can find harmonically compatible tracks at a glance and build sets that flow.

Audio Quality

Know your files before you play them.

A built-in analyzer flags low-bitrate files, upscaled MP3s, and other quality issues before they make it into your set — so every track sounds as good as it should.

Track Organisation

Your library. Perfectly labelled.

Clean up messy filenames and tags directly inside your library. No more digging through Finder or third-party taggers to get your collection in order.

Our Story

Why elian exists

It was a research night. I was organizing new tracks when I found a Deep House at 120 BPM with a groove that stopped me cold.

I thought: what if I push it to 130? At 130 BPM, it stops being Deep House. It becomes something else entirely — more energy, different crowd, different moment, different playlist. I do this often: drastically manipulating the BPM of a track until it transforms into something completely different. Sometimes it doesn't work. Sometimes it turns to gold.

The problem is that to find out, I had to open Rekordbox just to test it, just to hear how it behaves. And just like that, I'd lose time, momentum, and flow.

elian was born to solve exactly that. But as we built, new needs kept emerging — and elian grew with them.

Today, in a single minimalist player, you get independent BPM and Pitch control, automatic key and tempo detection, track renaming with BPM and Key, audio quality analysis — genuine, suspicious, low quality — real-time waveform and the Camelot Wheel for harmonic mixing.

For DJs who want to test before they play. For musicians who want to rehearse at the right tempo. For dancers who want to learn without rushing. For anyone who wants to hear music differently.

elian started with a simple idea. It grew because people needed it to.