User Manual

CHAPTER 22. LIVE MIDI EFFECT REFERENCE 347
22.5 Random
The Random Effect.
Random adds an element of the unknown to the otherwise commonplace pitch parameter.
The Chance control denes the likelihood that an incoming note's pitch will be changed by a
random value. You can think of it as being something like a dry/wet control for randomness.
The random value that determines the pitch change is created by two variables: The Choices
control denes the number of different random notes possible, from a range of 1 to 24; the
Scale control value is multiplied by the Choices control value, and the result dictates the
pitches that random notes are allowed to have relative to that of the incoming note.
For example, if you play the note C3 with Chance set to 50 percent, Choices set to 1 and
Scale set to 12, half of the resulting notes will play at C3 and half will play at C4. But with
Chance set to 50 percent, Choices set to 12 and Scale set to 1, half of the resulting notes
will play at C3 and half will play at one of any semitone that is between C#3 and C4.
These examples assume that the Sign buttons are set to Add and the Mode button is
set to Rnd. The Sign controls decide whether the random alteration adds to the original
note's pitch, subtracts from it, or does a little of both. The LEDs below the Sign controls
give you a visual idea of how output pitch compares with that of the original.
The Mode button determines whether the alteration will be random or, when set to Alt,
will cycle between the allowed output notes in a xed order (sometimes known as cycle
round-robin). The Chance control behaves a bit differently in Alt mode - at 100 percent,
the next output note will always be the next note in the series. At 0 percent, the next output
note will always be the incoming note.
For example, with Chance set to 100 percent, Choices set to 12 and Scale set to 1, playing