Buchla 200e series, Руководство пользователя

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Description - model 252e Polyphonic Rhythm Generator
252151029
The 252e sequences pulse patterns and CV values stored in the cells of eleven concentric rings.
Ring cells resemble the stages of more conventional sequencers, but the architecture of the 252e
allows for interesting and unusual possibilities not previously available. Four pulse outputs and six
CV outputs can be assigned freely amongst the cells. Each of the three clocks can be assigned to
any of the 11 rings and synchronized to generate two- and three-part polyrhythms and polymetric
patterns. Pulses and CVs can be shifted independently within a ring. Pitch and velocity CV pairs
can be captured from MIDI input – while editing and during performance. The 252e can
synchronize to - or generate - MIDI clock. A Euclidian pattern generator is included to serve as a
rhythmic library.
Anatomy
The 252e consists of 5 primary functional areas (roughly clockwise from the top-right):
- CV output and editing
- Display layer selection
- Clock assignment and synchronization
- Cell selection and Euclidian pattern generation
- Pulse editing and output
Quick Start
The default preset is configured with the master clock assigned to the 4 beat ring. There are single
Red, Green, and Blue pulses in cells 1, 2, and 3 of the ring respectively. If you press the
“play/stop” button, the playhead-cursor will begin to step at the default 120 BPM and you’ll see
from the LEDs in the “PULSE OUTPUT” section that pulses are being performed at the expected
times.
To alter the BPM setting, turn the “MASTER BPM” knob. The value shown on the segmented
display will begin blinking to indicate that you have deviated from the current BPM. To apply the
new BPM setting to the master clock, press the encoder down. The value will stop blinking to
indicate that the displayed BPM value is now active.
The cells in a ring can only be performed when a clock is assigned to the ring to “drive” it. Clocks
are assigned to rings using the clock assign knobs and buttons. The current clock assignment is
indicated by an unblinking yellow ring number LED. A pending clock assignment is indicated by a
blinking LED.
To change the clock assignment, turn the “assign” knob until the blinking LED moves to the
desired ring number. When you press the “assign” button, the LED begins blinking faster and the
assignment is changed the next time cell 1 is performed for that ring. Try changing the master
clock assignment by turning the “assign” knob and pressing the “assign” button. When the current
ring arrives at cell 1, you’ll see the play cursor jump to the new ring you’ve assigned and being
travelling around the ring. In the next section you’ll learn how to add pulses to an empty ring.