Cirklon Sequencer User Manual
1. The Cirklon Concept
Cirklon is a multi-track MIDI and CV/gate hardware sequencer.
It has a maximum of 64 TRACKS, each of which can play a PATTERN of notes and/or
controller messages on a connected INSTRUMENT.
Instruments can be connected to one of 5 independent MIDI ports, an optional multi-channel
CV/gate port, one of 6 virtual ports on the class-compliant USB-MIDI interface, or to an
optional drum-trigger interface connected to the SYNC port.
All the MIDI ports can send MIDI tempo clock or time-code.
The SYNC port can be used to slave DIN SYNC equipped devices at 24 or 48 ppqn.
Cirklon has 2MB of battery-backed RAM, which holds all the song and instrument data, and
configuration options.
The contents of RAM are retained while the power is off, so you are ready to return to the
music you were working on the moment it is powered up.
Songs, instrument definitions and configuration settings can be saved to, and loaded from
internal flash storage, or a standard FAT format SD or MMC card in the rear panel slot.
The entire contents of memory can also be saved as a single .SYX file to internal or card
storage, or backed up and restored via MIDI system exclusive dump.
All the patterns which make up one piece of music are grouped together in a SONG.
Multiple songs can be loaded in Cirklon’s memory, but only one can play at a time.
As well as the patterns, each song also has an instrument assignment for each track, and a set
of SCENES.
The instrument assignments determine which instrument will play the pattern on each track.
Scenes are used to recall the pattern selections for every track, along with the initial
active/muted status, and a number of other values.
By creating a sequence of scenes in a song, a whole piece can be assembled from smaller
sections, each composed of a number of patterns playing across the tracks.
The following figure shows a simplified example of what is going on inside Cirklon while
playing a song.
After describing what’s there, we’ll go through the stages needed to get to this point.
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