Roland DP90 用户手册

When using Dual Play, you can adjust the volume balance between tone 1 and tone 2.
9-1 (tone 1 is louder)–9-9 (same volume)–1-9 (tone 2 is louder)

When playing ensemble with other instruments and in other such instances, you can match the standard pitch to another instrument.
The standard pitch generally refers to the pitch of the note that’s played when you finger the middle A key (A4). For a cleaner ensemble sound while 

performing with one or more other instruments, ensure that each instrument’s standard pitch is in tune with that of the other instruments. This 

tuning of all the instruments to a standard pitch is called “master tuning.”
415 .3–440 .0–466 .2 Hz

You can play classical styles such as Baroque using historic temperaments (tuning methods).
Most modern songs are composed for and played in equal temperament, the most common tuning in use today. But at one time, there were a wide 

variety of other tuning systems in existence. By playing in the temperament that was in use when a composition was created, you can experience 

the sonorities of chords originally intended for that song.

Equal

In this tuning, each octave is divided into twelve equal steps. Every interval produces about the same amount of 

slight dissonance.

Just Major

This tuning eliminates ambiguities in the fifths and thirds. It is unsuited to playing melodies and cannot be 

transposed, but is capable of beautiful sonorities.

Just Minor

The Just tunings differ from major and minor keys. You can get the same effect with the minor scale as with the major 

scale.

Pythagorean

This tuning, devised by the philosopher Pythagoras, eliminates dissonance in fourths and fifths.
Dissonance is produced by third-interval chords, but melodies are euphonious.

Kirnberger

This is an improvement of the Meantone and Just tunings that provides a high degree of freedom of modulation. 

Performances are possible in all keys (III).

Meantone

This scale makes some compromises in just intonation, enabling transposition to other keys.

Werckmeister This temperament combines the Meantone and Pythagorean tunings. Performances are possible in all keys (first 

technique, III).

Arabic

This tuning is suitable for the music of Arabia.

When playing with tuning other than equal temperament, you need to specify the temperament key 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 temperament key.

C, C , D, E , E, F, F ,G, A , A, B , B
*  In the display, a quotation mark (“) signifies a sharp (#).

This lets you specify the amount of “stretch tuning,” a tuning method specifically for pianos, in which the high range is tuned slightly sharper, and 

the low range is tuned slightly flatter.
If you select “ON,” a standard tuning curve created for the unit will be used.
OFF, ON

This adjusts the damper resonance of the acoustic piano sound (the sympathetic vibration produced in strings other than those actually played 

when you press the damper pedal).
Higher settings will make the sympathetic vibration louder.
OFF, 1–10

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Various Settings (Function Mode)

The same procedure is used for all settings in Function mode.

The [Key Touch] button and [Transpose] button will light; the unit 

will be in Function mode.