Reason Rack Plugin 13.4 Operation Manual
A patch contains settings for a specific device. Patches can be either separate files on your hard disk or files embedded in a ReFill (see “About ReFills” for info about ReFills). A Rack Extension often comes with patches embedded within the Rack Extension itself.
See “NN-19 Sampler”, “NN-XT Sampler” and “NN-Nano Sampler” for details.