xoxos has released MiniSeries, a MIDI sequencer based on a looping counter.

xoxos MiniSeries

From the manual:

The counter can iterate forwards or backwards, by a set or modulated amount. This technique in music is often referred to as Serialism.

MiniSeries features

• 1 counter, 8 steps.
• 3 LFOs.
• 2 random values per step.
• 1 voice of polyphony.

Series is the non-freeware of MiniSeries. It features 2 counters (16 steps), 4 random values per step, 3 voices of polyphony and 3 assignable sequences.

A comprehensive manual (pdf) is included in the MiniSeries download.

Download MiniSeries for Windows PC here.