Here is an interesting Vlog from Pianobook about why samples sound better pitched down.
Why Do Samples Sound Better When Pitched Down?
Pianobook is a website run by one of the founders of Spitfire Audio and has some good resources regarding sampling pianos and creating good sounding sampler instruments from minimal samples. He often uses a Schimmel upright piano which is the same model we have in the live room.
There are also a number of free sample instruments for Logic, Kontakt and Ableton on the website piano book library
