Matrix Sequencer

See Update: https://www.modulargrid.net/e/tiptop-audio-z8000

The Z8000 Matrix Sequencer is a powerful tool in a small package. Contained within its structure are the following:

a) Four 4 step sequencers on the horizontal (1/2/3/4).
b) Four 4 step sequencers on the vertical (A/B/C/D).
c) One 16 step sequencer aggregating all four horizontal 4 step sequencers in order from top to bottom, left to right.
d) One 16 step sequencer aggregating all four vertical 4 step sequencers in order from left to right, top to bottom.

Thus, giving you a total of ten sequencers in all.

http://tiptopaudio.com/z8000/