‘The Big 3’ are listed under B in List A-Z . ‘Big Mama Thornton’ is listed under T in List A-Z. 20 Big ones from Trojan is listed at random in List Compilations .
The word ‘The’ is not considered except for the band ‘The The’.
Bands with names like Jethro Tull & Uriah Heep are listed under J & U respectively where no individual uses the title, whilst people with names such as Alice Cooper are listed under C because you identify an individual with that name.
Some artists cross over genre boundaries so you may need to check out one or more lists.