How do you say it?

LLB was watching the inauguration at school - because they made them.
One supposedly highly educated woman was introducing the instrumentalists and said the word Pianist.
She said it "Peenist".
LLB found that odd. Pianist has an a in the middle of the word. We say Pee ah nist or Pee an ist. We don't say peenist.
Peenist can be misconstrued as phallic...

Pianist has an a. Use it.