Double the Speed of a Rex Loop in Reason
For those times when your loops in Dr. Rex are twice as slow or twice as fast as your song, there is an easy way to slow down the loop or speed it up. In the sequencer view, select a group of notes and right click on one of them. Then select “Change events”. You will see an input that is labeled “Scale tempo”. If you want to double the speed, type 200% and then press ok. Otherwise, type 50%. You can experiment with this for interesting loop speed variations