@mcc as for jazz with metal drumming umm… less clear to us but we remembered reading that blast beats have some history in Jazz music, and indeed a glance at the wiki page suggests https://www.discogs.com/release/943463-Albert-Ayler-Live-In-Greenwich-Village-The-Complete-Impulse-Recordings for 'Sunny Murray's 1966 or '67 performance on a live recording "Holy Ghost" with saxophonist Albert Ayler'. We haven't heard this but Ayler is consistently great so this is prolly worth your time, we'll track it down as well…