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