This screen shot shows an arrangement for six saxophones.

Transposing instruments:   The Bb soprano sax and tenor saxes read a key of C major, the Eb altos and baritone have a key of G major.  The result sounds in Bb major. [The soprano sounds a tone lower than written, the altos a major 6th lower, the tenors a major ninth lower; and the baritone a major 13th lower.  MOZART knows about transposing instruments - all you have to do is select the instrument.

Music font: This illustration shows MOZART's smallest music font - designed for clarity when you want to see a lot of music on the screen.  Printing is usually done with MOZART's (better-looking) Truetype music font (as the printer has many mre pixels than the screen).