Trumpet Trivia
The highest note a trumpet can produce

There are many varieties of trumpets, and they also vary in range. In the most common case of a B♭-pitch trumpet, the highest note that can be played is said in elementary reference books to be one octave higher than the B♭ just above the middle line of the treble clef. But in reality there are some players who can produce a B♭ an octave higher. This is to say that it is not a question of the highest note the trumpet can physically produce but a question of the highest note that can be played. In fact, performances by session musicians often extend in range up to an octave higher than the high B♭ more generally considered to be the instrument's highest note.