BMC22. Auto-Seq

"Auto-Seq" is shorthand for "Automated Sequencer." It is a unique step sequencer which

programs it's own sequences. There is a small selection of controls to help refine it's sequences to

the taste of the composer. There is no way of storing and recalling the sequences which it writes,

Auto-Seq is an improviser. If you're interested in random composition, or if you're just tired of the

hand cramps that come with programming traditional step sequencers, then this is a module that

you might find useful.

It features:
-A built in quantizer with mode selection
-A built in clock multiplier/divider ranging from x4 to /8.
-Control over length of pattern and range of pitches
-Straight or random Rhythms
-External reset, and pattern write inputs
and more.


The board features PC mounted pots for less wiring, and mounting holes for flexibility in panel layout. There are Eurorack and MOTM power connecters. It can be built in +/-12V or +/-15V systems with no modifications.

Here is an mp3 demo demonstrating a few randomly generated patterns from just hitting the "new pattern" button.
Here is an mp3 demo demonstrating the differences in musical modes, pattern lengths, rhythmic subdivisions and pitch range
Here is an mp3 demo demonstrating the difference in straight rhythm and random rhythms. It also features some drum sounds in the background to help give the rhythms a better context. Only the auto seq is manipulated in this mp3.

For complete information on this module and more mp3 demos, download this PDF file.  

PCBs and PICs are available at $20 for a set.
Unfinished panels are for sale for $8 each. Please read this page on unfinished panels before ordering.
If you'd like to drill your own panel, here is the drill guide that I use to make these panels. It should be printed at 300dpi.