I haven't the faintest idea.
If there's a universal thread tying all my disparate musical preferences together I haven't found it.
Depending on my mood, I'll listen with relish to anything from Black Sabbath to Aaron Copeland to Frank Zappa to Sonny Terry & Brownie McGhee. I like Led Zepplin as long as I don't have to look at them. I love The Who and Jean Redpath. I'll take in an opera, chamber music, most songwriters, Big Band anytime, and Jazz from Monk to Mangione. I think Ella Fitzgerald at her peak in the 1960's is the greatest singer who ever walked the face of the earth bar none. I think Weird Al and Spike Jones are the best. I sing 'Big Leg Emma' by the Mothers in the shower, and I think everyone should learn the traditional blues music of the Mississippi Delta as part of their formal education.