ReGroove patches in the Factory Sounds bank Reason ships with a ready-made assortment of groove patches, arranged in a number of different folders: Bass-Comp, Drummer, and Percussion Grooves in these categories were created by session musicians. Their performances were captured and analyzed, and the timing and velocity information was then extracted from the performances. The Bass-Comp patches also contain note length information, though the other categories do not. MPC-60 These grooves were created by analyzing the audio output of an Akai MPC-60. Use these patches to get the same shuffle feeling as an original MPC-60. Note that these patches do not contain any velocity or note length information. There are some additional patches that use the Random Timing feature, which emulates the original MPC-60's behavior when loaded with a lot of information. Programmed These grooves were created by a session drum groove programmer. They were hand-crafted to emulate the feel of certain styles, and are divided into two genres: Hiphop and Pop-Rock. These grooves do not contain any note length information. Vinyl These grooves were created by sampling snippets from classic groove records, analyzing them with a special signal processing tool, then extracting both timing and velocity information from the samples. These grooves do not contain any note length information.