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19.4. RANDOM 279

19.4 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, with Chance set to 50 percent, Choices set to 1 and Scale set to 12, half of the

resulting notes will play at the original pitch and half will play 12 semitones higher. But, with

Chance set to 50 percent, Choices set to 12 and Scale set to 1, half of the resulting notes

will play at the original pitch and half will play at one of any that are 12 semitones higher.

These examples assume Sign buttons that are set to Add. 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.

Hint: Try using the Scale effect after Random to obtain random values within a specic

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Ableton Live - 5.0 Bedienerhandbuch Seite 281