One way to create a second instrument is to lower the first one through a pitch shifter and transpose it back up.
Seriously, it won't screw it up and it'll change the timbre slightly. I haven't done this with clarinet, but I have done it with acoustic guitar using Sound Toys' Speed.
Seriously, it won't screw it up and it'll change the timbre slightly. I haven't done this with clarinet, but I have done it with acoustic guitar using Sound Toys' Speed.