SOUND STUDIO
------------
'@' (to the left of 'Return', just above 'Right Shift'): Take snapshot.

'Space': Lock/unlock scrolling.

'Help': Read tutorial.

'.' (numeric pad): Default set the video settings immediately (in case of
                   emergency, i.e. if you happen to select a vertical
                   frequency that your VGA can't handle).

For owners of the Tabby graphics tablet:
'Left Shift', 'Right Shift': Right Tabby button.
'Control', '#' (below 'Delete'): Middle Tabby button.
'Tab', 'Delete': Left Tabby button.

'Escape', 'Return', 'Enter': Exit any menu.

'Undo': Undo last action.

'p': Play segment once.
'l': Play segment repeatedly (loop).
's': Stop sound.