just album ratings. I don´t care if the band or the singer comes out only with bad albums. If he/she/they have 9 albums, and they all are rated 2, they are consistent on what they do. That´s what i want: Consistency throughout the carrer. I just need a way to measure this consistency with math. I´ve tried adding up all the ratings and dividing by the number of albums, but if an artist has just one album rated 5 and all the other rated 9, and he has 15 albums, he´s pretty consistent. But the album rated 5 will make the total go down