is a VST software plugin instrument that is a total solution for all bass sounds, both realistic and synth. It includes thousands of professional bass patches, with easily modifiable settings and parameters. For realistic basses, it includes multiple bass guitars (including upright bass), multiple articulations and modes (including slides, gliss, hammer-on's, harmonics, trills, and noises), and much more. Originally, this software is installed from a set of cd's (not even DVD's), so it can take awhile to set up. It comes in VST and RTAS format, but it does not come in a DirectX plugin format (which is what I prefer when working in Cakewalk SONAR). It includes gigabytes of high-quality, professional sounds, and for being a relatively pricey produce (over $300), the quality certainly shows, even though the simplistic interface.
Trilogy excels in simplicity, flexibility, and all of the sounds are generally great. With a massive patch system, you can easily browse and find any bass sound that you are looking for, whether it be a real bass or a synth bass. It also lets you edit the major parameters of the sound, such as envelope, filters, LFO, velocity curves, slide/porto, and much more. Most of the patches come in the form of two main sounds, A and B, and you can adjust the parameters and volume of the two sounds individually, or you can adjust them simultaneously.
It is very easy to quickly find a great sound, and then simply fine tune some of the parameters (mainly envelope) to your personal needs. It is possible to make new sounds from scratch, using the Trilogy sound library, but this is not necessary and for the most part, I never do this. If you want a synth where you can create sounds from scratch, this isn't the best tool for that job.
Overall, the Trilogy is a wonderful solution for all bass needs. It may be a legacy product now, but this is a product worth finding!