Finagle My Song · Blog
What is DR — and why Spotify doesn't care how loud your master is
You've seen the number in every analyzer: DR. Dynamic range. Most producers glance past it on the way to the LUFS reading.
That's backwards. Spotify took the loudness decision away from you. DR is the decision you still get to make.
What DR actually measures
DR is the gap between your peaks and your average level. A snare that cracks 10dB above the track around it — that's dynamic range. A track where everything sits at nearly the same level, wall to wall — that isn't.
Loudness and DR are two ends of the same trade. The way you make a master louder is by shaving the peaks so you can raise everything else. Every dB of loudness you gain comes out of the gap between your transients and your average. That's not a side effect. That's the mechanism.
Why Spotify ignores your loudness
Spotify normalizes playback to around -14 LUFS. Master at -9, it gets turned down. Master at -14, it gets left alone. On the listener's phone, both play at the same volume.
So the loudness war is over on streaming — nobody hears your LUFS number. But here's the part almost everyone misses (and the reason this isn't an argument for mastering at -14): the normalization gives back the volume, not the peaks. The -9 master turned down to -14 doesn't get its snare crack back. The limiting is baked in. What survives normalization is the character of the trade you made — density or punch.
That's DR. It's the only part of the loudness decision the listener actually hears.
So what's the right DR?
There isn't one — it's a genre and intent decision, not a spec. But rough bands, from the analyzer:
- DR 3–5 — brickwalled. Dense, static, exhausting over a full track. Occasionally the right call for aggressive electronic genres. Usually just over-limited.
- DR 6–8 — modern loud. Dense but controlled. Where most contemporary pop/hip-hop/EDM masters live.
- DR 8–12 — punchy and open. Transients breathe. Rock, indie, anything that lives on drum impact.
- DR 12+ — very dynamic. Acoustic, jazz, classical, film. Gorgeous on good speakers, can feel quiet-in-the-verses on earbuds.
The question isn't "what number do I need" — it's "does my track live on impact or on density?" A drum-driven track at DR 5 has had its reason for existing limited out of it. A dense techno track at DR 12 falls apart.
Check your own track
Pull up your last master and look at the DR next to the LUFS. If you were chasing a loudness number, odds are the DR took the hit without you ever deciding it should.
That's actually why the analyzer I built shows DR right next to LUFS. Upload a track to Finagle My Song and it shows you your LUFS, DR, true peaks, and tonal balance — and recommends a target that fits the song, not a platform spec sheet. Free, no account needed.
But even without it: next time you master, decide the DR on purpose. Density or punch is a choice the song should make — not the limiter.