Roland CM-500 - (7) A Part for Drums; (8) Changing Between Drum Sets

(7) A Part for Drums
Part 10 is for playing drums. In the drum part, you use the tones of a drum set.
Drum sets are not like ordinary tones in that a different sound is assigned to each key.
That is, no matter what key you press in a violin tone, you get a violin sound; it may be
a different pitch but it’s still a violin sound. However, each key in a drum set tone plays
a different instrumental sound: kick, snare. hi-hat. ес. Since percussion instruments
don't generally carry the melody and so have little variation in pitch, we can handle them
all on just one channel.
Q
Select
from
the
16,384
(128
x
128)
different
tones.
Usual parts
€
Every
key
sounds
the
same
tone.
@ Select from the 128 different drum sets.
Drum part
€ A different sound is assigned to each key .
Roland drum machines and percussion sound modules all send and receive MIDI data on
MIDI channel 10 asa standard. Likewise, GS sound sources power up with MIDI channel
10 as the default channel for drum parts.
(8) Changing Between Drum Sets
The GS Format has been designed to allow changing between 128 different drum sets for
playing drum (actually, there are no modules yet that have 128 different drum sets).
Drum sets can be changed using program change numbers.
In
the
GS
Format,
drum
sets
are
ranked
by
Program
Change
numbers
roughly
the
same
way
as
in
tone
maps.
In
addition,
the
kind
of
sound
assigned
to
a
particular
key
has
also
been
standardized.
With
the
sounds
arranged
this
way,
a
song
will
play
back
pretty
much
the
same
every
time,
no
matter
what GS
sound
source
you're
using.
Drum set
1234567 .-. 128
Program
change
number