Apple Logic Pro 7 User Manual download pdf (Page 634)

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634 Chapter 21 Song Settings and Preferences

The Root Key pull-down menu allows you to select a global key (C–B) for the chosen

scale as an easy way to reference the chosen historic scale to any root note.

This mode tunes keys to different degrees of scaled tuning, and delivers a “key

signature character”. When playing mostly white keys (in the Pure setting, and with C as

the Root Key), C major will be the main focus, and tuning will be scaled to that chord.

An A major chord that is played immediately after a C major (and is therefore subject to

C major scaled tuning) will be affected somewhat by the scaled tuning effect, but will

not sound completely tempered. If you normally play polyphonic music, this mode

(when using the Pure setting) will sound most pleasing to your ears.

The Fixed Tuning scales are ideal for a number of Baroque and Mediaeval instruments

and styles of music.

User

Each semitone can be detuned from equal temperament in semitone steps. To do so,

just click-drag—vertically —on each semitone box until the desired value is reached.

Alternately, you can double-click in each semitone box, and type in a value. Press Enter

or click on another box to exit the text entry mode.

The Reset button will reset all of your tuning adjustments to their default values.

The Stretch Lower and Stretch Upper sliders can be used to stretch the tuning in the bass

and treble, to simulate the “stretched tuning” of some instruments, for example

acoustic pianos.

Stretch Lower determines the deviation from the equal-tempered scale in the bass end

of the sound. The higher the value, the further down the low notes are tuned. A setting

of 0 results in an equal-tempered scale tuning.

The Stretch Upper parameter does the same in the treble end of the sound.

Hermode Tuning (HMT)

In the Type menu, you can choose between the following options:

3/5-all

This mode proves a broad and regular tuning of pure 5ths and 3rds. In cases of conflict,

the degree of purity will be temporarily reduced. This mode can be used for all types of

music. The value of the Hermode Tuning Depth parameter indicates the degree of the

5th and 3rd purity. A setting of 100% determines maximum purity. A 10% value is the

lowest purity setting. Off sets the tuning to an equal tempered scale.

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Apple Logic Pro 7 User Manual Page 634

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