Verified answer

Here you go ~

http://en.wikipedia.org/wiki/Transposing_instrumen...

The piano is a C instrument. When you play a C on a piano, the note is a concert C. When you play a C on a Bb instrument, the note is concert Bb. When you play a C on an F instrument, the note is a concert F. When you play a C on an Eb instrument, the note is a concert Eb.

C like flute

C