Midi Timecode

I am having trouble figuring out how to get midi timecode working to run a show.

On the Road Hog, I will be using the M Audio Uno USB MIDI adapter.
That part seems pretty straight-forward, the only part i'm having trouble with is figuring out a source for the timecode.

Up to now on my old lighting system, I have played an mp3 file and the software used that timecode to trigger the cues in the cuelist.

How will I get timecode to the Road Hog from playing an mp3 file?

I'm assuming I will need a second USB MIDI adapter for a laptop and I will run the audio files from that, but how will I get the timecode generated and sent from the laptop to the Road Hog?

Does anyone have any ideas?

Thanks for your help!
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