The fact that the Wave Table Synthesizer does not function on a Macintosh Plus
or a Macintosh SE is a known limitation of the Sound Manager. This means that
if you want a four-tone sound, you have to use the Sound Driver as opposed to
the Sound Manager. Be aware that you cannot use both the Sound Driver and the
Sound Manager at the same time, and, because SysBeep is owned by the Sound
Manager, you cannot receive SysBeeps while using the Sound Driver.
A further note of caution: if you are going to use the Sound Driver this way,
be sure to use System 6.0.4 or later. It solves a problem directly related to
SysBeeps to prevent crashes caused by SysBeeps when you are using the Sound
Driver.