I was on a concert with orchestra and there was a player performing sampler on the keyboard. The player played from the score which had a standard notation. However when a tone is pressed on the keyboard it produces a sampled sound. The keyboard was connected to a computer and than to the amplifier (speakers).
How to make that set-up? What software is used to map (link) these sounds to the keyboard? I know how to make sounds, but I don't know how to make a set-up.