Programmed by Ken Goosens, November 15, 1983. Public domain software.
Three options are available:
BEEP - A short beep. Signifies a noteworthy event, such as error, or
end of processing.
ALERT - Series of pulsing, insistent sounds patterned after Star Trek
red alert. Use for serious warnings of major dangers.
TAKEOFF - Long, rising pitch, like a falling bomb or rocket takeoff.
Signifies build to a climactic event.
Invoked at DOS level by typing "SOUND [option]", e.g.
SOUND ALERT SOUND B SOUND takeoff
Case is not significant, and only first letter of the option is necessary.