In this video, we learn how to use sidechaining in Logic Pro. The idea is that one sound will cancel out another. For example, when the kick comes then the bass will disappear. To do this, first set up an ultra beat using a multiple out with the preset kit. From here, you can send this to it's own channel on the mixing base. If you go back to the mixer, you will see the ultrabeat and can create a new channel that links directly from this. Do this by clicking the "+" symbol. After this, convert this to a mono track and play the track. Now you will see your kick coming straight through and you can continue to play around with this until you have the type of melody you would like.