Mess up your MIDI
Back in the day, loose MIDI clock and sync between studio hardware resulted in subtle timing imperfections. A great way of adding vibe to a perfectly quantised MIDI sequence, therefore, is to purposely mess up your MIDI sync by automating a MIDI insert effect such as Cubase Pro’s Quantizer. By automating the delay amount every so often, you’ll achieve a ‘looser’ feel. Go for a 2-3ms shift for a subtle effect, or 15-20ms to be more obvious.