Cirklon Sequencer User Manual
10. CK patterns
As mentioned briefly in the section “Creating and Assigning a Pattern”, Cirklon has two
different pattern types.
A P3 pattern is made up of between 1 and 16 bars, each bar holding 16 steps of the various
row values described in the P3 pattern edit section.
In contrast, a CK pattern is stored as an “event list”.
An event in this context refers to a MIDI message to be sent at a specific time.
A CK pattern is a list of MIDI events – MIDI messages stamped with the time at which they
should be sent during playback of the pattern.
In the case of note events, they also have a length value. A note-off message must be sent to
release a note that has been triggered with a note-on. The length value of a note event
determines the time between the sending of the note-on and note-off messages.
The CK pattern can hold any number of events, from zero, up to the available limit of
memory. Its bar length value can take a much wider range than a P3 pattern, since there is no
fixed allocation of memory required for each bar. Memory is only used as needed for the
number of events added to the pattern.
The CK pattern can also be set to “infinite” length – the events will play through once, for as
many bars as required, but the pattern will never loop.
The two pattern types both have a distinct set of advantages.
In the case of P3 patterns, the fact that the pattern data is held in a rigid structure makes
possible their non-linear direction modes, step skipping, and aux event processing.
For CK patterns, the event list structure means that there is no theoretical limit to the number
of notes (or other events) that can occur at the same time. This makes the CK pattern ideal for
polyphonic keyboard and percussion patterns, and patterns with streams of rapidly changing
controller values.
(Note that for practical reasons, a limit of 16 simultaneously held notes per track applies)
CK patterns also provide the best way to recreate a live keyboard performance by capturing a
pattern with real-time record.
When you play a note on a MIDI keyboard, a note-on message is sent specifying a note
number and velocity value.
If you move the modulation wheel, a controller message is sent with the new position of the
wheel. Various other message types may carry pitch-bend, channel pressure (aftertouch),
polyphonic pressure, and program change information.
To Next Page
Loading...
