Create custom "count-in" instrument?
I'd love to know if the following is possible (and if so, how difficult it is):
I'd like to create a custom instrument, which would show in my list of instruments, which is named something like "Count-In." This instrument would have different samples (each about 0.5 seconds long or less). Each sample would be a voice (me) saying a different number, e.g. "1" and other common counting words like "and."
Each sample would be assigned to a different line or space of the instrument, just like the MS drumset instrument has different sounds for different lines and spaces.
I'd like to be able to add this instrument to any MuseScore file, then choose notes and rhythms in order to start a vocal count-in for any track at any tempo.
Is this possible? Easy? Difficult? Thanks!