Conversation so far:
When did Dan Brown become a songwriter?
In 1991 he moved to Hollywood to pursue a career as singer-songwriter and pianist.
What was his first published song?
in 1990 self-published a CD entitled Perspective.
Was it successful?
sold a few hundred copies.
What did he write next?
In 1994 Brown released a CD titled Angels & Demons.
Was it successful?
CANNOTANSWER.
Did he release any more music after that?
Brown and his wife, Blythe, moved to his home town in New Hampshire in 1993.
Brown became an English teacher.

Question: Where did he teach?
Self-contained rewrite: Where did Dan Brown teach in New Hampshire?