Using Pressure (Aftertouch) As An Arpeggiator Controller - Kurzweil PC1 - MUSICIANS GUIDE REV B Manual

Play and hold a single note. Notice that it is repeated. Try adding more notes. As you
press them they are added to the arpeggio. Let go of one of the keys. Notice that note is
dropped from the arpeggio while the others continue. Notice that the arpeggiator plays
the notes in the specific order that you strike them. Also notice that the loudness of the
arpeggiated notes depends on how hard you strike the keys.
Hold the sustain pedal and let go of the keys. Notice that even though the notes sustain
normally, the arpeggiation stops. In order for the arpeggiator to work, the keys must be
held down, or otherwise latched (see the descriptions of the arpeggiator parameters
beginning on page 5-16).
4. Select the Hi parameter. Hold Enter and play Middle C to set the Hi parameter to C 4.
Now play a chord in the bass and a melody in the treble. Notice that any notes up to C 4
are arpeggiated but all notes above that are played as normal. The Key Range parameter
lets you set a range of notes that will be affected by the arpeggiator while others can be
played normally. Hold Enter and play the top note to put the arpeggiator back to
playing across the "keyboard."
5. Select the Zone Enable parameter. This enables you to arpeggiate one or more setup
zones, and play others normally. Several of the preset setups do this.

Using Pressure (Aftertouch) as an Arpeggiator Controller

In this example, we'll use aftertouch to control the volume of arpeggiated notes.
1. First, make sure that keyboard aftertouch is sending the Pressure controller message.
Find the Ctrl Num parameter for MPressure (in the Controllers menu in the Setup
Editor), and set its value to Pressure (it's near the end of the list of values).
Aftertouch is somewhat similar to the Pitch Wheel, in that it functions like a spring; it
returns to 0 as you release the pressure. You can assign aftertouch to send any MIDI
controller number. However typically, aftertouch is assigned to Pressure, which is a
separate MIDI message.
One final thing to understand: There are actually two different types of aftertouch:
Mono Pressure and Poly Pressure. On most MIDI keyboards, Mono Pressure has a
single strip running across the keyboard, so pressing down on any note will generate
controller info that will affect all the notes played on that MIDI channel. Poly Pressure
has a separate sensor for each key, so pressing down on a key only affects that key. The
PC1 uses Mono Pressure.
2. Press the Menu button, then find the Arpeggiator menu and press Enter.
3. Find the Vel Mode parameter, and set its value to Pressure. Now when you hold notes
and apply pressure, the volume of each arpeggiated note is controlled by how much
pressure you apply.
Programming your PC1
Using the Arpeggiator
4-23