Inside the Signal

In listeners we trust. Not just what they remember. What they do.

What Is Tune-Out Data

An online listener count moves constantly. People arrive and leave for reasons unrelated to the song on air: the hour, the day, a link shared elsewhere, an app closing in the background.

BEFORE CORRECTION · RECENT DANCE UK PLAYS
The audience count keeps moving while each song plays. The tune-outs shown here are observed departures, before any attempt to separate the song from normal listener movement.
Dance UK · 5 recent plays before correction · Accelerated playback · Audience sampled every 5 seconds

Most tune-outs are normal listener movement. Less than a quarter of tune-outs are associated with the song itself.

The system measures this background traffic and attempts to isolate the song's own signal.

The song is scored against the room it actually played in.

Removing the Room

The system first adjusts for the station's normal audience movement at that time of day. After correction, the relationship with time of day drops to around zero in the stations tested.

The same correction accounts for neighboring songs. Without it, a song's reading can be pulled around by whatever happened to play immediately before or after it.

Schedule bias test · before and after ambient correction
before correction after correction Dance UK 0.38 0.00 Box UK 0.15 0.00
After correction, that schedule link all but disappears: Dance UK’s drops from 0.38 to 0.00, Box UK’s from 0.15 to 0.00.
Dance UK + Box UK · Raw vs. ambient-corrected measurement · Airplay Live live database

The useful question is not “how many listeners left?” It is “did more or fewer listeners leave than we would normally expect here?”

POP Score is not a count of listeners who tuned out during a song. It is an attempt to isolate the smaller, repeatable part of that movement associated with the song itself. That distinction is the foundation of everything that follows.

From signal to Score

POP Score is updated after every play. Each song becomes a small ongoing music study as it airs across different dayparts and reaches different mixes of listeners. The correction above is what makes those plays comparable.

Without it, the same tune-out count could mean one thing at 7am and something else at 9pm.

POP Score · live song examples

The Final Countdown
87.6
Miss You Like Crazy
30.0

THE BIG 80S · Live station data · Current POP Score

Most songs live in the crowded middle of the scale. Less than 10% ever break out of it.

The middle is busy with constant, small movements, like the middle of a Top 40 chart: positions 15 to 35 trade places every week without meaning much. The top and the tune-outs tell the real story.

As New Music Settles

POP Score starts forming on the first plays and settles as airplay builds. Until it is steady enough to read, the score stays dimmed. That point comes sooner on some stations than others.

HOW POP SCORE SETTLES
Big 80s POP Score change Median absolute POP Score change over the next eight plays, from scored play 1 through 15, across 580 songs. 0 5 10 1 5 10 15 scored plays · big 80s
How far the score still moves between plays, in points. The Big 80s.1
HOW OFTEN THE EARLY ORDER HOLDS
Big 80s POP Score pair confidence The share of close-score song pairs where the higher POP Score correctly orders the better independent listener response on plays 21 through 40. 45% 50% 60% 70% 5 10 15 20 scored plays
Two songs within 5 points: how often the higher one held up later. 50% is change.1

Scores develop fastest for songs receiving the most airplay, so the system learns quickest where rotation decisions matter most. Even while dimmed, the score band already points where the score is heading, and it is usually right.2

Hits take longer to confirm, but clear flops can appear much earlier: on The Big 80s from the first play, and on Dance UK by about the fourth. That is where POP Score is fastest: spotting a heavily rotated song that is holding the audience worse than expected.

HIT OR FLOP
POP Score distribution POP Score distribution across 9163 tracks played in the last 180 days, combined across current music stations, catalog size normalized, median 53.2. Shaded region marks the current hit threshold at 68 and above. 0 25 50 75 100 POP Score
GREEN MARKS SCORES IN HIT TERRITORY. ALL STATIONS.

Early movement is shown at band level. A song approaching Flop territory receives a badge, with a note and the evidence behind it.

Once a song reaches Hit territory, it tends to stay there, suggesting there may be room to increase rotation.3

Measurement runs continuously, keeping the full catalog ranked on current data as new songs build evidence and their scores settle.

Proven, steady choices for rotation: listed in Stamina

See an example Music and Talk report →

Early-play measurement data

Airplay Live live database

1 The Big 80s, 28+ consecutive scored plays. Movement drops to about half its opening level by play 10. Songs matched at play 5 on score, timing and rotation pace, then checked over plays 21-40. Half the catalog held out.

2 Band direction when dimming lifts is later confirmed in ~93% of Dance UK tracks and >95% on Big 80s, Play 90s and Guerrilla.

3 Dance UK, play 10 to 30: Hit-to-Flop 5.3%; Flop-to-Hit 4.2%.

Reference stations are shown for demonstration only. No partnership or endorsement implied.

POP is the score. Everything else is the math behind it.