Reason › Instruments & Effects Scales & Chords
Use it to stay always in key, or use its one-finger chords to explore rich harmonic options that you might not have thought about.
Add scale awareness to your instruments with Scales & Chords. Select your key and scale from a list of common and not-so-common scales and your playing will always be in key. Turn on the chords button and have Reason add one finger chord magic that fits right with your music. With controls for chord coloring, number of notes, inversion and more, you have a very helpful harmonic tool at your disposal.