Cliff Burton was a fan of classical music, so it’s not a stretch that his signature bass solo “(Anesthesia)—Pulling Teeth” can somehow be translated to an orchestral instrument. SFS bassist Scott Pingel, who has been a Metallica fan since his teenage years, decided to pay tribute to the late bassist once his orchestra planned to do another S&M concert. After getting approved by his higher-ups and purchasing a special electric double bass to properly employ all the effect pedals, Pingel showed his musical idea to the band, and they were impressed, to the point that Lars Ulrich decided to join in with his drumming to ensure it very close to the original.

San Francisco Symphony Bassist on Show-Stopping Tribute to Metallica's Cliff Burton — Rolling Stone

When Metallica drummer Lars Ulrich first heard that one of the members of the San Francisco Symphony wanted to pay tribute to Cliff Burton, the band's late bassist, at the group's S&M2 collaboration earlier this month, he didn't know what to expect.