As a touch typist, I don't mind when cinema portrayals depict typists "hunting and pecking," but I am tired of seeing actors who alternate left-right-left-right-left-right...
The music for this is exactly what you would expect.
The typewriter was modified so that only two keys work to prevent the keys from jamming. According to the composer himself, as well as other musicians, the typewriter part is difficult because of how fast the typing speed is: even professional stenographers cannot do it, and only professional drummers have the necessary wrist flexibility...Michael Kamen used this composition as the musical basis for "the Office" theme for the Ministry of Information in Terry Gilliam's Brazil. When Mrs. Buttle's cheque for her dead husband is filed in the Ministry of Information a tune is played on typewriters interwoven with orchestral music to symbolize a stuffy bureaucratic atmosphere. The same music is also used later in the film when Sam joins the Ministry of Information and is then met with Mr. Warrenn and his many yes-men.
Related: Touch typing (not)