Boss Dr. Rhythm DR-880 Owner's Manual page 15

24. KEY Button
Use this button to change the playback key of
a song or pattern.
25. TEMPO (TAP) Button
Use this button to specify the playback tempo
of a song or pattern.
You can also set the tempo by tapping
(lightly striking) this button at regular
intervals (the Tap Tempo function).
26. EZ COMPOSE
Press these buttons to use the EZ Compose
functions.
PATTERN Button
Use this button to easily create patterns.
CHORD PROGRESSION Button
Use this button to easily add chord
progressions.
FILL IN Button
Use this button to easily add fill-in patterns.
27. GROOVE MODIFY Button
Press this button when you want to use the
Groove Modify function.
28. TSC (Total Sound Control) Button
Use this button to switch the TSC patch on/
off, or to edit the settings. (p. 30, p. 100)
29. Key Pads
These pads play drum sounds and bass
sounds.
30. FAVORITE
You can use these buttons to register eighty
(20 banks x 4) of your favorite pattern/song
numbers or guitar effect patch numbers.
1–4 Buttons
Press one of these buttons to recall the
pattern/song or guitar effect patch that is
registered to that button.
BANK Button
You can switch favorite banks by pressing
down this button and pressing a key pad.
31. PHONES (headphone) Jack
You can connect a set of headphones to this
jack.
32. GUITAR/BASS INPUT Jack
You can connect your guitar or bass to this
jack.
Front and Rear Panels
15