An historic KORG product, which Sherinian used (and still uses) since its launch in the world market in 1996. He made this keyboard famous mainly due the "Monster Lead" patch, a signature synth lead patch thought and programmed with the help of a KORG sound technician, Jack Hotop. His official website, which has a page listing his gear, says, "The Leopard Room is anchored by a Mac G3 running Digidesign's Pro Tools 5.0. The Pro Tools rig is the way to go for me, Derek enthuses. The flexibility of this system is awesome. The core synths in Derek's jungle are a Korg Trinity and Z1..." Original source [here](http://www.dereksherinian.com/gear-studio.html).more
It´s 20 years old now, but still rocks. I use it mainly for synth sounds: it can get fat or it can sparkle, always with an impressive audio clarity. The Prophecy expansion board is outstanding: it´s basses and dirty leads are HEAVY. Overall, Trinity is extremely well built, with well laid controls and an excellent semi-weighted Yamaha keybed (mine is 61 keys).