Beatnik

The Beatnik Plug-in is a driver which manages the playback of RMF and
other audio files within Web browsers. The greatest strengths of the
Beatnik Plug-in are its high fidelity and its potential for
interactivity. The sound quality is comparable to high-end PC wavetable
sound cards even though the processing is entirely
software-based. The potential for interactivity results from Beatnik's
support of a comprehensive set of JavaScript functions, which allow for
a richer and more personalized musical experience than other multimedia
delivery solutions. Beatnik allows a Web page to play music not only on
opening, but also on an event such as a "mouse click" or "mouse over."
These events can also trigger individual notes, sampled voices, or sound
effects; start or stop music; and change tempo, volume, pitch, or mix.
This is revolutionary in that it allows and even encourages direct
musical interactions with Web pages, instead of the current use of the
Internet as a playback-only system.