Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910251 CHAP 11 Manual page 2

Master Mode
The Master Mode Page
them drum programs because a likely application for this type of program is to create drum kits
with many different percussion timbres. You can assign any keymap to any layer, however, to create
as complex a program as you want. All those extra layers create a lot of information for the K2500's
sound engine to process. Every bit of information that's sent to the sound engine is associated with
one of the MIDI channels. The K2500's sound engine has enough processing power to handle three
layers' worth of information from 8 channels, and 32 layers' worth from the other 8. By default,
MIDI channels 1-8 are defined as drum channels.
If you'd like, you can use the DrumChan parameter to define a channel numbered higher than 8 to
be a drum channel. In this case, the channel you choose, along with channels 1-7 will be your drum
channels. For example, if you set DrumChan to 13, then your eight drum channels will be 1, 2, 3, 4,
5, 6, 7, and 13. If you set DrumChan to a value of 8 or less, however, your drum channels will always
be 1, 2, 3, 4, 5, 6, 7, and 8.
Drum channels are the only channels that can have drum programs (any program with more than
three layers) assigned to them. So when you're in Program mode, the current MIDI channel must be
a drum channel if you want to assign a drum program to it. If you're in Program mode (or in Quick
Access mode with a program selected) and the current MIDI channel isn't a drum channel, the
drum program's name will be in parentheses and the box at the left of the Program mode display
will tell you which channels are the drum channels. If you're in Setup mode (or in Quick Access
mode with a setup selected) and the current MIDI channel isn't a drum channel, the drum
program's name will be enclosed in parentheses. In either case, the program will not play. Setting
the DrumChan parameter to match the current MIDI channel (or vice versa) will restore the drum
program to normal operation.
Velocity and Pressure Touch
These two parameters are only used by the keyboard version of the K2500, and have no function in
the K2500R. If you are using a K2500R, you should leave them set to their default values.
If you change the setting of the Veltouch parameter, remember that it also has an effect on the
transmit velocity map (set on the MIDI XMIT page).
Intonation
Most modern western music uses what is known as equal temperament. This means that the
interval between each semitone of the 12-tone octave is precisely the same as every other interval.
Many different intonation intervals have evolved over the centuries, however, and the K2500
supplies you with 17 different intonation "tables" to choose from. (There's also an eighteenth "table"
listed, which we'll describe in a moment.) By changing the value for this parameter, you select from
among the intonation tables stored in the K2500's memory. Each of these tables defines different
intervals between each of the semitones in a single octave.
Scroll through the list of Intonation tables, and listen for the differences between semitones. Some of
the intervals between semitones may be quite different from equal intonation, but you'll notice that
all notes are precisely tuned with notes that are an octave apart. This is because the intonation tables
set the intervals within a single octave, and apply those intervals to each octave. If this doesn't make
sense, the explanation of the Intonation Table Editor, in Chapter 17, will help clarify things. If you're
hoping to create fully microtonal tunings by editing intonation tables—sorry, that's not possible. But
you can create microtonal tunings using the Keymap Editor; see Chapter 15. There's a list of the
intonation tables in Chapter 17; descriptions of each can be found in Chapter 5 of the Reference
Guide .
Determining the version number of your ROM Objects (Intonation Table 18)
As you're scrolling through the list of intonation tables, you may notice a listing for an eighteenth
intonation table with a name such as "18 Obj v n.n ". This isn't really another intonation table. Rather,
this is where the K2500 stores the version number of your ROM objects. If you ever need to find out
what version of ROM objects you've got loaded, this is where you look. Simply go to the Master
page, then scroll the Intonation parameter until 18 is displayed. And don't forget to return to your
correct intonation table when you've checked the version number of your ROM objects.
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