Even with “Thank You” and “Ramble On” on Led Zeppelin II, critics considered the LP the birth of metal. (Many still do.) And after III, some wondered if the Zep would pick a lane (i.e., hard or soft).

With ear-splitting excess, flamboyant virtuosity and a talent for transgression, where classical music has led, metal has followed. Let’s hope the Philharmonia’s Metal Orchestrated concert turns it up ...