Roland KF-90 Manuale Utente

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You can play classical music such as baroque pieces using 

their original tuning.

Most modern songs are composed and played with the 

assumption that equal temperament (the most common 

tuning in use today) will be used, but when classical music 

was composed, there were a wide variety of other tuning 

systems in existence. Playing a composition with its original 

tuning lets you enjoy the sonorities of the chords that the 

composer originally intended.

The following screen will appear.

fig.08-06.eps

You can choose from among the eight tunings described 

below.

Tuning system Characteristics

This tuning divides an octave into 12 equal 

parts. Every interval produces about the same 

amount of slight dissonance. This setting is in 

effect when you turn on the power.

This scale eliminates dissonance in fifths 

and thirds. It is unsuited to playing 

melodies and cannot be transposed, but 

produces beautiful chords.

The scales of the major and minor just 

intonations are different. You can get the 

same effect with the minor scale as with the 

major scale.

This scale is suitable for Arabic music.

This scale is a modification of the meantone 

and just intonations that permits greater 

freedom in transposition to other keys. 

Performances are possible in all keys (III).

This scale makes some compromises in just 

intonation, enabling transposition to other 

keys.

This scale devised by the philosopher 

Pythagoras eliminates dissonance in fourths 

and fifths. Dissonance is produced by third-

interval chords, but melodies are 

euphonious.

This is a combination of the mean tone and 

Pythagorean scales. Performances are 

possible in all keys (first technique, III).

When playing with tuning other than equal 

temperament, you need to specify the ground note for 

tuning the song to be performed (that is, the note that 

corresponds to C for a major key or to A for a minor 

key).

If you choose an equal temperament, there’s no need to 

select a keynote.

A piano is generally tuned to a pitch with a lower bass range 

and a higher treble range than equal temperament. This 

special tuning method for pianos is called “Stretch Tuning.”

A graph that shows the changes in pitch of actual tuning 

compared with the changes in equal temperament pitch is 

called a tuning curve. Changing the tuning curve produces 

subtle variations in the reverberations of the chords you play.

Display

Characteristics

This tuning curve expands the bass and treble 

ends somewhat (Stretch Tuning). It is suitable for 

performances such as piano solos. This setting is 

in effect when you turn on the power.

This is the standard tuning curve. It is suitable 

when playing layered tones, or for playing in 

ensemble with other instruments.

Touch <Exit> to go back to the Piano Customize screen.