The NN-19 device is Reason's original sampler, introduced in the first version. All of the controls on the NN-19 can be fully automated from a controlling device. There are two ways of getting sound out of NN19: load a single wav/aiff sample or load a sampler patch. Loading a single wav/aiff file will instantly transpose the audio across the keyboard by speeding up or slowing down the playback of the sample. The NN19 can import and play mono or stereo files.