Once you learn how to automate trap hats in Reason, you'll be able to quickly make trap beats. But for some reason, Propellerheads Software has made it surprisingly difficult to automate hi hats to create a trap beat.
But don't fear! I'm going to teach you how to quickly get your trap hats firing.
You can download the patch here:
Start by creating a Kong drum machine in Reason and loading up a drum kit that you like.
Then create a Combinator. Inside the Combinator you're going to place an RPG-8 arpeggiator.
Now you're going to press the tab key.
Create a CV connection between the RPG-8's Gate CV Output and the Gate In of the Hi Hat in your Kong.
Now select the Combinator to receive note input, hold down a key, and you should hear hi hats repeating.
Note: if the hi hats only trigger once, make sure you've got Single Note Repeat selected on the RPG-8.
Now repeating hi hats are good, but that's not the sound of trap hats.
So while holding down the key, experiment with moving the Rate knob in the RPG-8 (make sure the Sync button is pushed down).
Now you start to be hearing trap hats! Of course, you've still got to automate them.
So right click on the RPG-8 rate knob and click "Edit Automation."
This will take you to the sequencer channel for the RPG-8's Rate. Select the pencil tool and draw in an automation space. Then you want to draw in your automation curve. This will determine how the hi hats speed up and slow down.
You'll want to experiment with the movement of your hats, but at this point it's up to you to automate your trap hats.
Note: a Combinator isn't really necessary to program the rhythm of trap hats, but it is necessary if you want to start easily automating the pitch of the hi hats as well as the rhythm.