| Audio quality |
10 | Perfect (modern studio recording) |
9 | Very good, but not perfect |
8 | Bad FR or noisy, but definitely ok |
7 | Poor FR or very noisy |
6 | Pretty bad, but listenable |
m | Mono |
|
[] | Indicates the title of the original recording |
* | Historic or recommended recording |
+ | Recorded over multiple days |