# How Long Is Your Tail?

**The long and short tail are the percentage of the total amount of tracks played that fall outside and respectivly inside the cummulative tracks played for the top-n rated artists. The short tail is exactly the oposite.**

If that's to much to grasp at once: To calculate the Long Tail you take a user's Top50. Calculate the sum of all the playcounts in there. Then divide it by the total amount of tracks played as listed in the user description area. Multiply it by a hundred to get a percentage. Substract it from a hundred to get the short tail. Based on a idea by itazurada.

AEP is the is the brainchild of C26000, he wrote a nice journal about AEP calculation.

## Calculate Yours

Use this form to calculate your Long Tails, Short Tails and AEP's.## RobHeathers has a % long tail.

This also means the short tail is 100%His ALT (Average LongTail) is %

You can also include this as a image anywhere you like.

This might look something like:

**My short and long tail are:**

Use this BBCode:

And while I was on it anyway, I calculated a full list of tail lengths and AEP's for all the top50 positions:

Rank: | Artist: | Plays: | Top: | Longtail: | Shorttail: | Average LongTail: | AEP: |

Created by Paul Cornelissen (pcmadman)

Visit pcmadman's last.fm profile or contact him at

__pcornelissen -at- gmail.com__