The Vertikal is a upright piano virtual instrument from Big Fish Audio, recorded and designed for when a song needs that little extra "attitude," be it rock, blues, jazz, or gospel.
There are so many sampled pianos on the market today and as a musician, one has the benefit of choosing from the multitude of different sounds. Most, or nearly all, of the sampled pianos are great, wonderful grand pianos like Steinway, Bosendorfer and other truly amazing instruments.
Vertikal on the other hand, delivers an upright piano, sampled from two different acoustical perspectives. It includes more than 2,300 individual samples per perspective.