I guess holiday music works

[Sid Schweiger]

"With the new PPM system, instead of four three month "books" or monthly "trends" there are 12 monthly "books."

Actually, there are 13 monthly PPM rating periods of four weeks each.  The 13th period is called Holiday and encompasses most of December.

The full PPM schedule of rating period dates and data delivery dates is available at http://www.arbitron.com/downloads/ppm_delivery_schedule.pdf .  Boston is in the fifth column from the right, and Providence-Warwick-Pawtucket (which moves to PPM measurement in late summer) is in the second column from the right.

Sid Schweiger
IT Manager, Entercom New England
20 Guest St / 3d Floor
Brighton MA  02135-2040