Hallo,
can you turn the sound off while writing notes?
 
Thnx Tomas

Mute the track?

??? No other possibilities?
That annoying somehow always while the editing the track to mute.

You should be taking advantage of the PRV pane

It is -H: in the above photo.
This will allow you to mute/solo, show notes, hide notes from all midi tracks (and audio if you choose)

The Mute in the PRV affects playback, but doesn't mute while entering notes. I'm kind of curious why it would be desirable not to hear what you're entering.

PRV midi sound can be annoying when moving / copying several notes together. Playing all notes of a melody or a chord sequence at once is usually a cacophony.

Midi mute only mutes the PRV editing, if it also mutes the instrument (which is if it is the only midi track for the instrument). Otherwise, you have to mute the instrument's audio track explicitly.

The quickest way of turning sound for PRV on/off is probably turning the complete audio engine on/off. (You may even assign a keyboard shortcut for this.)