MRP Sequencer

MRP Sequencer is a software step sequencer conceptually very similar to vintage analogue step sequencers such as the ARP 1601/1603 and Korg SQ10, and recent digitally controlled step sequencers such as the Frostwave Fatcontroller and Colin Fraser's P3.
MRP Sequencer goes a little beyond the feature set of most step sequencers.

It can accomodate sequences of up to 64 steps, track count limited only by processing power, output MIDI port and channel can be set per step, select-modify paradigm enables any set of steps to be, affected by editing operations extensive randomisation/variation functions, clean graphical user interface, and a text user interface enables full scripting.