What’s the TTKP?

Whenever Jennie and I are in the car together,  we will listen to the local Top-40 radio station (KISS 108).  One top-40 artist that i can recognize reliably is Katy Perry.  It seems like we can’t drive very far before we are listening to Teenage Dreams, Firework or California Gurls.   That got me wondering what the average Time To Katy Perry  (TTKP) was on the station and how it compared to other radio stations. So I fired up my Python interpreter, wrote some code to pull the data from the fabulous YES api and answer this very important question.  With the YES API I can get the timestamped song plays for a station for the last 7 days.  I gathered this data from WXKS (Kiss 108), did some calculations to come up with this data:

  • Total songs played per week:  1,336
  • Total unique songs: 184
  • Total unique artists: 107
  • Average songs per hour: 7
  • Number of Katy Perry plays: 76
  • Median Time between Katy Perry songs:  1hour 18 minutes

That means the average Time to Katy Perry is about 39 minutes.

Katy Perry is only the fourth most played artist on KISS 108.  Here are the stats for the top 10:

Artist Plays Median time
between plays
Average time
to next play
Taio Cruz 84 1:07 0:34
Rihanna 80 1:27 0:44
Usher 79 1:20 0:40
Katy Perry 76 1:18 0:39
Bruno Mars 73 1:30 0:45
Nelly 56 1:44 0:52
Mike Posner 56 1:57 0:59
Pink 47 2:20 1:10
Lady Gaga 47 1:59 1:00
Taylor Swift 41 2:17 1:09

I took a look at some of the other top-40 stations around the country to see which has the lowest TTKP:

Station Songs Per Hour TTKP
KIIS – LA’s #1 hit music station 8 39 mins
WHTZ- New York’s #1 hit music station 9 48 mins
WXKS- Boston’s #1 hit music station 7 39 mins
WSTR- Atlanta – Always #1 for Today’s Hit Music 8 38 mins
KAMP- 97.1 Amp Radio – Los Angeles 11 38 mins
KCHZ- 95.7 – The Beat of Kansas City 11 32 mins
WFLZ- 93.3 – Tampa Bay’s Hit Music channe 9 39 mins
KREV- 92.7 – The Revolution – San Francisco 11 36 mins

So, no matter where you are, if you have a radio, you can tune into the local top-40 radio station, and you’ll need to wait, on average, only about 40 minutes until a Katy Perry song comes on. Good to know.

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  1. #1 by Tom on November 10, 2010 - 9:29 am

    Very nice, although the correct terminology is surely MTTKP (mean time to Katy Perry).

    There will of course be lots of stations with an infinite MTTKP, based on available data, but I bet there are some amusing exceptions. I wonder what the MTTKP of BBC Radio 3 is, for example – she must have showed up on Late Junction at least once, probably in between some Debussy and some Albanian nose flute.

    • #2 by Tom on November 10, 2010 - 9:30 am

      Actually maybe that should be MTBKP (mean time between … ). Or MPTTKP (most probable time to … )

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