Glossary A•27
trolling device which can be assigned a control-
ling function (start/stop, fill, modulation, damper,
etc.). The WK4 can accept three switch action
or continuous control pedals.
Performance: A configuration of tracks used
to recall a sound combination for the keyboard
(Performance Groups), a sound combination
for the accompaniments (Style-Performance)
and a sound combination for the Songs (Song-
Performance).
Physical Controllers: On-board Sound con-
trolling devices (Trackball, Pedals, etc.).
See
also
Controllers.
Pitch: Intonation, frequency.
Pitch Bend: Dynamic modification of the pitch.
Activated by left/right movements of the Trackball
or by an appropriately programmed pedal, or a
MIDI message.
Playback: The term that describes the Se-
quencer’s capability of reproducing a Song.
Preload: “Background” Song loading while the
Sequencer is playing another Song.
Program Change: A MIDI Message used to
change a Sound, Performance, Style or Song.
Frequently used in combination with the
BankSelect (ControlChange 00) message.
Quantize: Correction of imperfect timing er-
rors committed during Song and Style record-
ings (including Rhythm patterns).
RAM: (Random Access Memory). A type of
Memory which can be updated with new data.
The WK4 can be fitted with three types of RAM:
System-RAM, Volatile Sample-RAM, battery-
backed Sample-RAM. RAM memory does not
retain data after turning off, unless backed by a
special battery.
RGB: (Red, Green, Blue) The signal emitted
by the output of the same name and generated
by the WK4 for the purpose of projecting the
display images and Song lyrics to an external
monitor (a colour computer or domestic TV).
ROM: (Read Only Memory). A part of the WK4
memory which cannot be modified, and in which
factory programmed data is conserved, includ-
ing the Operating System MIOS. In the WK4,
the ROM is a flash-ROM, up-dateable with OS-
disks containing later versions of the operating
system. ROM memory is not cancelled when
the instrument is switched off.
Sample: Refers to a portion of the sound
recorded in numeric form. The combination of
several samples along the music scale is called
a multi-sample. In the WK4 multi-samples are
called Waveforms which constitute the princi-
pal element of the Sound.
Scart: The connector through which a domes-
tic TV or colour computer monitor can receive
the WK4 display data, including the Lyrics and
Music Score of the WK4 Songs.
Score: The WK4 function which permits you to
see the Lyrics and Music Score across the
display. The WK4 can also transmit the data to
an externally connected domestic TV or colour
computer monitor, both fitted with the SCART
connector.
Search: The function found in Edit Disk (Sin-
gle Sound operations) which permits you to
look for a Sound in a long list by specifying two
or more letters that are contained in the Sounds
name. Also found in Edit Sound to permit the
search of the Wave samples.
Sequencer: A system of recording MIDI data.
The Sequencer permits you to record a poly-
phonic song sound by sound, and reproduce
the song after applying eventual corrections.
The quality of a sequencer recording is main-
tained and does not decay, even after many
recordings and modifications. The Sequencer
does not record sounds, it records MIDI data
(events). The WK4 incorporates a powerful 32-
track sequencer with extensive edit functions.
Song: A piece of music, recorded or repro-
duced (played back) by the Sequencer.
Sound: In the WK4, the Sound is the basic
source, based on samples elaborated by enve-
lopes and filters. The Sounds, assigned to
Tracks, make up the Performances.
Sound Patch: A Sound consisting of several
other sounds. The Sound Patch can assign
two different sounds separated by a dynamic
