It is so to allow a performer to play any of a particular family of instruments in the correct pitch without having to mentally transpose the written notes as he plays. A concert flute and an [[alto flute]], for example, which are of different pitches, can be played using exactly the same fingering. The player of the alto flute, which is pitched a fourth below the standard concert flute, can play his instrument using notation that is written a fourth above the actual pitch of his instrument. He can play either instrument to a written score without having to think about it. It is up to the composer to get it right. | It is so to allow a performer to play any of a particular family of instruments in the correct pitch without having to mentally transpose the written notes as he plays. A concert flute and an [[alto flute]], for example, which are of different pitches, can be played using exactly the same fingering. The player of the alto flute, which is pitched a fourth below the standard concert flute, can play his instrument using notation that is written a fourth above the actual pitch of his instrument. He can play either instrument to a written score without having to think about it. It is up to the composer to get it right. |