Tau

Discontinued .

http://www.muon-software.com/html/other_products.html

The others (Tau Bassline MKII and Tau Pro) are shareware (the free links are only demos).

Good products besides this... but the lack of information on this actual KVR page (the missing state "No longer available") leads to a confusion.

Not discontinued at all - you can get your free copy at https://facebook.com/muonsoftware.

This has never been available for free at the Facebook page - this appears to be a bait-and-switch by Muon.