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22 tracks on Deezer's Hard Rock Essentials were measured on 2026-07-08 — spectrum, loudness, dynamics, stereo image and timbre. This is the playlist's sound as numbers, and your track can be scored against it below.
Third-octave spectrum of the Hard Rock Essentials lineup: mean level per band (line) and one standard deviation (shaded), in dB. Measured, not illustrated.
Your track's hook is measured the same way and ranked against the tracks already on the playlist — plus 58 other editorial lineups, so you see where it fits best, not just here.
Your file is analyzed and deleted — we keep numbers, not audio.
Tonally, Hard Rock Essentials is bright for a streaming playlist — the upper octaves carry nearly as much energy as the lows: the median spectral tilt across its 22 measured tracks is -0.88 dB per octave, and the spectral centroid sits at 1057 Hz — 326 Hz above the median of all 59 playlists we measure. Dynamically it is dynamic — peaks ride well clear of the average level, at a median PLR of 15.0 dB (track range 13.2–17.1 dB). Loudness range is 2.5 LU — loudness breathes moderately from section to section. The stereo image is wide but phase-safe (median correlation 0.68, mid/side ratio 7.2 dB). Musically, the lineup shows tonal centers are present but soft (key clarity 0.64), an even split between major and minor keys, highly repetitive structures (repetitiveness 0.94). Event density points to busy arrangements: 3.50 onsets per second at the median. On the engine's perceptual scales the lineup reads Warmth 93/100 and Richness 72/100.
| Metric | Median | Track range |
|---|---|---|
| Peak-to-loudness ratio (PLR) | 15.0 dB | 13.2 – 17.1 |
| Loudness range (LRA) | 2.5 LU | 1.1 – 7.1 |
| Crest factor | 14.0 dB | 10.8 – 16.7 |
| Dynamic range | 6.6 dB | 3.3 – 9.0 |
| Spectral tilt | -0.88 dB/oct | -1.26 – -0.03 |
| Spectral centroid | 1057 Hz | 614 – 1564 |
| Spectral rolloff | 3835 Hz | 2289 – 5809 |
| Stereo correlation | 0.68 | 0.45 – 0.89 |
| Mid/side ratio | 7.2 dB | 4.2 – 12.3 |
| Onset rate | 3.50 events/s | 2.40 – 4.97 |
| Key clarity | 0.64 | 0.25 – 0.84 |
| Repetitiveness | 0.94 | 0.87 – 0.97 |
Median integrated loudness of the measured previews: -14.5 LUFS. Treat this as a property of loudness-normalized 30-second previews, not a mastering target — see what LUFS is.
The engine analyzes public 30-second previews of the 22 tracks on the playlist lineup of 2026-07-08: a 30-band third-octave spectrum, loudness and dynamics metering, stereo correlation and timbre statistics. The previews are deleted after measurement — only the statistics are kept.
The median peak-to-loudness ratio is 15.0 dB, with individual tracks ranging from 13.2 to 17.1 dB. Higher PLR means more transient headroom; lower means denser limiting.
The lineup's median stereo correlation is 0.68. If your track is far wider or narrower than that, it will stand out from the playlist's sound — which the Radar score reflects.
No. Editors weigh story, momentum and taste — things no analysis can measure. What the profile tells you is whether your track sounds like it belongs, so you can spend your pitches where the fit is real.
By measured distance on tilt, centroid, PLR, crest and correlation.
One upload, ranked against every measured lineup.
The loudness unit behind every streaming platform's normalization.
How editorial pitching works and what you control.
Hard Rock Essentials is a playlist operated by Deezer. The name is used to identify what was measured — public 30-second previews of the lineup on 2026-07-08. Phosphor Audio is not affiliated with or endorsed by Deezer.