In Cubase, each MIDI track that you open in the Score Editor is automatically mapped to an instrument type, based on the name of the corresponding MIDI track and the range of the MIDI notes.
As the instrument mapping has an impact on the number of staves and the clef on each stave, voice separation works automatically.
Each instrument type has its own properties, such as notational conventions, transposition properties, tunings, clef, the number of staves, and the type of staff. Having these properties predetermined makes it easier and quicker for you to create new projects.
For transposing instruments such as brass instruments, which produce notes that differ from the ones that are written, Cubase saves all relevant information in concert pitch and, provided that the part is set to transposed pitch, automatically transposes notes, as appropriate for the transposition of the instrument. This allows you to record and play back a multi-staff arrangement while scoring each instrument according to its own transposition.
Transposition is set automatically, depending on the instrument. The transposition for a trumpet instrument, for example, is automatically set to B♭.
If you want to change the instrument for the active track manually, you can do so on the Instrument tab of the Layout Settings dialog or by selecting .