Exercise 1: Korg sounds

What we're trying to do...

What to turn in...

How to go about it...

NOTE: If you're confused about the process of changing sounds on the Korg, read p. 20 in the Triton Le Basic Guide.

  1. Plug your headphones into one of the jacks of the headphone amp, and make sure the knob near this jack is turned up. Also be sure the volume slider on the Korg is up.
  2. Press the PROG button (to left of display) to enter Program Mode. A program, or patch, is one of the sounds made by the synthesizer. The display should look something like this...

    Programs are arranged in banks, 128 per bank. Switch between banks using the PROG BANK keys, to the right of the display. There are five banks: A, B, C, D and GM.

    Change programs by spinning the large wheel. You can also type the number of a program on the keypad, followed by the ENTER button.

    Programs are also organized into categories, like "keyboard," "brass" and "guitar." Press the CATEGORY button, and see if you can figure out how to navigate the categories and select programs from them. (If you can't, see p. 21 in the Triton Le Basic Guide.) If you really like this feature, try using the HOLD button to keep the category fixed while choosing programs.

  3. Play as many programs as you can. How does the sound of a particular program affect the way you play it? A flute program probably won't sound like a flute if you play chords on it, as if it were a piano.
  4. As you play, notice that most programs are sensitive to how hard you strike the keys. This is known as velocity sensitivity. Usually, greater velocity makes a louder sound, but there are other aspects of the sound that can change, typically tone color. Try to figure out what varies with velocity.
  5. Some sounds respond to aftertouch (or pressure), which is an unusual way of playing a keyboard. After you strike a key, and while holding it down, vary your pressure on the key. On the Triton Le, and depending on the program, this almost always adds vibrato (or does nothing at all).
  6. Learn how to work the joystick, found to the left of the keyboard.

    The joystick is spring-loaded — it snaps back to the middle position when you let go. Move it left to bend the pitch down and right to bend it up. Moving the joystick away from you usually adds more vibrato to the sound; moving it toward you might change the tone quality. (The behavior depends on how the program's author set things up.) Find a program that has a particularly compelling use of the joystick.

    NOTE: Please treat the joystick with some care. If you get into the habit of pushing it violently to the extremes of its motion, I'm sure it will eventually break.

  7. The Triton has four knobs that let you control various aspects of the sound while you play. We'll call these the realtime controls.

    The function of the knobs depend on the controller mode: A, B, C. Change mode by pressing the SELECT button. Mode A lets you adjust a few common settings, mostly having to do with the filter, which changes tone quality. In mode B, the function of a knob depends on the particular program. Don't be surprised if a knob doesn't seem to be doing anything.

    There are also two on/off buttons (SW1 and SW2) above the joystick, whose function changes depending on the program.

    Fiddle around with the knobs and buttons while you play to see if you can make interesting changes to the sound.

  8. With all the sounds you play, think about their envelopes. An envelope is a way of describing how the volume of a sound changes. We draw these as a graph of amplitude (which correlates with loudness) over time. As we'll learn later, typical envelopes can have various stages. The attack is the stage initiated by striking a key. The sustain is in effect while you hold the key down. The release starts when you let go of the key.

    The various stages can have different slopes. For example, an organ typically has a very quick attack and a very quick release. A cymbal has a fast attack and a long release.

    Get used to describing the envelopes of sounds using a graph like the one above. Don't worry about doing a perfect job of this; for a complex sound, it can be very hard to depict in a simple graph how the sound changes.

  9. If you're tired of playing, try out the Arpeggiator. To use this, press the ARP ON/OFF button so that it lights up. Then hold down several keys. The arpeggiator generates a pattern using the notes you play. Some programs turn on the arpeggiator right away when you choose them. The realtime control knobs in Mode C affect the speed, velocity and duration of arpeggiated notes.

    For more about the arpeggiator, see pp. 26-28 in the Triton Le Basic Guide.

  10. Hand in a typed sheet with the name and number of 3 programs you like. For each program, write a brief paragraph that tells:

    NOTE: A "brief paragraph" contains more than one sentence. If your typed sheet is only a half page long, you're not trying hard enough.

©2005, John Gibson