I listen to a lot of "progressive rock" (I really hate labels on music but sometimes its the easiest way) and a lot of those bands do concept albums all the time. The 2 best concept albums I have ever heard are "Operation Mindcrime" by Queensryche and "Metropolis II: Scenes From a Memory" by Dream Theater. Both tell a story over 13 or 14 songs. Phil Bronx, NY