Roland Midi Keyboard Software. Press the + button so it is lit. Press the key labelled adv. 3.
Press the key labelled adv. 3. Press the + button so it is lit.
MATRIXSYNTH Rare AXIS 1 Roland Midi Keyboard Keytar
Roland Midi Keyboard Software Press the key labelled adv. 3. Press the key labelled adv. 3. Press the + button so it is lit.