I went to Berklee (mid 70s). Trumpet was my first instrument but I loved bass guitar. Once I asked Steve Swallow for private lessons & he explained, "bass performance majors only". (Wish I changed the major, & he had short jet black hair & a beard--has it been that long?) Anyway, I remember seeing Chick Correa perform at Symphony Hall (Dec. '74 or Jan.'75) & Stanley Clarke had his new Alembic bass. I was blown away! My question is a bit banal & I apologize. But how could one accomplish that. Sheer strength? How did he do it?