From 1993 up to the end of the 90s, the Gravis Ultrasound (aka GUS) was one of the most popular soundcards among programmers and musicians. Many demos, intros, games, trackers and players support the GUS as their primary or only sound source.
However, the GUS is no longer produced. In addition, new motherboards do not even have ISA slots, and the GUS cannot be accessed in a DOS box in Windows 2000/XP.
Waiting for a replacement of the GUS has come to an end; the release of GUSemu allows you to hear sound and music instead of silence!