Conversation so far:
Where was Lesh born?
Lesh was born in Berkeley, California.
What was significant about his childhood?
started out as a violin player.
While enrolled at Berkeley High School.
Did he go to college?
player.
While enrolled at Berkeley High School.
Did he play violin in any orchestra in highschool?
he switched to trumpet and participated in all of the school's music-related extracurricular activities.
What did he do after school?
Upon dropping out, he successfully auditioned for the renowned Sixth Army Band.

Question: How long did he stay with the Sixth Army Band?
Self-contained rewrite: How long did Phil Lesh stay with the Sixth Army Band?