5.0 - Perfect or near perfection
4.5 - Excellent! can't live without it
4.0 - very good
3.5 - good
3.0 - ok, there's some good tracks
2.5 - bah... can exist, but nothing more. Maybe one or two good tracks
2.0 - bad
1.5 - throw that in the garbage, but put on gloves before touching it
1.0 - no comment
0.5 - wow... the musical emptiness has been reached