on Billboards year end albums countdown they list Musicology finishing at #25 overall but on the r&b top 20 album chart Musicology isnt even listed..even if they dont count the free cd's at the concert Musicology was on the r&b album charts for a long time and is still hanging in there at #98 this week..many of the albums Prince outsold on the regular chart are ahead of him on the year end r&b chart..how can this be?

http://www.billboard.com/...bums_2.jsp