The King of 78s: Joe Bussard. This guy has 15,000 records and hilariously cantankerous taste in music. Although maybe that passion and nerdery foments and requires this kind of dismissive focus:

Q: Is there a music genre that you avoid?
A: Rock-n- roll. Period. Any of it. Hate it. Worse thing that happened to music. Hurt all types of music. They took blues and ruined it. It’s the cancer of music….ate into everything. Killed Country music, that’s for sure.
Q: A lot of people would claim the complete opposite. that Rock-n-Roll re invented and recharged music. What is it about rock-n-roll that annoys you so much?
A: Don’t like. Just my personal taste. Don’t like the sound of it, the meaning of it…doesn’t promote anything beautiful or meaningful. Idiotic noise, in my opinion.
Q: So artist like Miles Davis, John Coltrane don’t deserve your time?
A: Oh my god, you gotta be kidding me. None of that music moves me.