Uno and QLAB to control a cuckoo clock

I am very new to Arduino. Like my first one came in the mail yesterday. Here is my issue. I am using the program QLAB to run the sound board at a theatre. We have a cuckoo clock that we need to fire at the same time as a few audio cues. I know qlab can send midi commands. My thoughts are this: have qlab send a msc note on command to uno, when it gets the on command a relay fires to trigger the clock. Is this feasible without a midi shield over USB? Also, any insight on how I might be able to program this would be welcome. I'm going through a book learning to program it, so here is my thought so far. Controlling the relay would be done in an if statement, I know syntax is wrong but for demo purposes: If Midinote = on, then trigger relay. Would that work, assuming I actually program it in the correct syntax.

Thanks!