Roland RS-70 - Manual (Page 50)

50
Overview of the RS-70
How the instrument is organized
Basic structure
Broadly speaking, the RS-70 consists of a keyboard controller
section, a sound generator section, and a quick sequencer section.
fig.r01-01.e
Keyboard controller section
This section consists of the keyboard, pitch bend/modulation lever,
panel knobs and buttons, and D Beam controller. It also includes any
pedals that may be connected to the rear panel. The performance
information generated when you do things such as press/release a
key, or depress the hold pedal is sent to the sound generator section,
sequencer section, and/or an external sound device.
Sound generator section
According to the performance data it receives from the Keyboard
Controller section and Quick Sequencer section, this section
generates and outputs sounds from the output jacks and headphone
jack. Up to sixteen parts can each play different sounds (patches),
with a simultaneous total of up to 64 notes. This section also includes
three effects (reverb, chorus, multi-effects).
Quick sequencer section
This section records operations such as your keyboard playing on
several independent parts, and sends this data to the sound
generator section to play it back. A loop recording function makes it
easy to create a musical pattern of any desired length. The patterns
you create can be connected in any desired order and played as a
song.
Classification of RS-70 sound
types
When using the RS-70, you will notice that a variety of different
categories come into play when working with sounds. What follows
is a simple explanation of each sound category.
Tones
On the RS-70, the tones are the smallest unit of sound. However, it is
not possible to play a tone by itself. The patch is the unit of sound
that can be played, and the tones are the basic building blocks that
make up the patch.
fig.r01-02.e
Patches
On the RS-70, the sounds you use for normal playing (e.g., from the
keyboard) are called
patches . A patch is analogous to an instrument
held by a member of an orchestra. Each patch consists of two tones;
an
upper tone and lower tone . You can assign the two tones to their
own region of the keyboard, or play them together to produce a
richer sound (p. 55). Detailed settings can be made independently for
each of the two tones (p. 57).
Rhythm sets
Rhythm sets are groups consisting of various percussion instrument
sounds. Since percussion instruments generally do not play
melodies, there is no need for a percussion instrument sound to be
able to play a scale on the keyboard. It is, however, more important
that as many percussion instruments as possible be available to you
at the same time. Therefore, each key (note number) of a rhythm set
will produce a different percussion instrument.
fig.r01-04.e
Keyboard Controller Section (controllers
such as keyboard, pitch bend lever, etc.)
Sound
Generator
Section
Recording
Playback
Quick Sequencer
Section
Play Patch
Upper Tone Lower Tone +
Note Number 98 (D7)
Note Number 97 (C#7)
Note Number 36 (C2)
Note Number 35 (B1)
Rhythm Set
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