Boss RC-300 Training Manual page 12

How to Select a RHYTHM Pattern
1. Press the RHYTHM EDIT button once. You will see Rhythm: Pattern in
the display.
2. Turn the MEMORY/VALUE Dial to select a pattern.
3. Press EXIT when you are finished.
How to Change the RHYTHM Time Signature
1. Press RHYTHM EDIT.
2. Press the RIGHT ARROW button to select Rhythm: Beat.
3. Turn the MEMORY/VALUE dial to select a time signature.
4. Press EXIT when you are finished.
BOSS RC-300 Training Guide
Page 12