How do I set key/scale on my play series product
There are two way to address key/scale on the play series pedals, manually and per preset.
To use the unit manually and call the key as need per preset, you'll need to confirm how the up/dn button press has been configured. To do this select 'setup->system 5/7->up/dn function', set this to set key. Select back to get out of the setup page. Select the up and down arrows simultaneously and you should see the Key menu on the screen, use the down arrow the set the key.
To assign a key to a preset, you'll want to confirm global key is off. To do this select 'setup->global 3/7->global key', set this to off. Select back to get out of the setup page. Select 'Effects->Harmony 4/7', press the practice button to select the key you want to select. Use the dial to set the key you desire. To get to the scale, press and hold the effects button until you see the screen change to the scale tab. Press store to save the key to the preset. This preset will now always be set to this key, unless you press the up/dw buttons to change the key.