Announced in January 1997, Reality  ran on Pentium PCs under Windows 95/98. Version 1.0 offered multiple types of synthesis, including PCM wavetable, subtractive, modal and FM, as well as physical modeling via the Sondius waveguide technology licensed from Stanford University. Reality was the first synthesizer able to simultaneously play multiple synthesis types on multiple MIDI channels in real-time.
Reality 1.5 was released in 1999, adding more polyphony, support for a broader range of sound cards and the ability to load and play SoundFont 2.0 samples. It also incorporated SeerMusic, enabling fast Internet playback of music files using a combination of MIDI and Reality synthesis data.
In February 1999, Seer announced SurReal,  a playback-oriented version of the Reality synthesizer engine. It was designed to be more user-friendly, and had fewer controls, but could load and play complex Reality soundbanks as well as SoundFonts. SurReal also supported SeerMusic for internet delivery.
SeerMusic was introduced in January 1998. By combining MIDI performance data, synthesis parameters and sample data, music playback files could be significantly smaller than standard compressed digital audio data.
Reallity, SurReal, ReMixer, and SeerMusic are all distributed under exclusive license through Note Museum.
You can download demo versions of these products from Note Museum or from Seer Systems’ download page.