Plugin for Muse Score

Hi
I am just putting this out there.
Developers would it be possible to develop a plugin the one could call phraise builder.
The idea being not random creation, but a composer would compose a phrase of 4 bars, or any length
and phrase builder would recognise the key and time signatures and generate possible variations to the phrase
in that key using the composed notes, but perhaps altering the rhythem by use of syncopation etc.
This would be a great help to budding composers with their melodic work. Random is all fine, but it's random and does not relate to the given notes.
Comments welcome on this possibility
Brendan