Roland KF-7 用户手册

With commercially available music files for piano lessons, the part for each hand can 

be played back independently. This makes it easy to practice hands separately. For 

example, you can follow along with your right hand while you listen to that same 

right-hand part be played, or you can practice the left-hand part while the right-hand 

part plays.

A music file for piano lessons may be assigned to the five Track buttons as shown below.

fig.trackbuttons.e

By using these Track buttons, you can eliminate the sound of specific parts. This is 

referred to as “muting.” 

By recording your own performances to the Track Buttons in this fashion, you can 

The sound for the selected part no longer plays.

For example, when practicing the right hand, press the [4/Upper] button.

When you play back the song, the right-hand performance will not sound. Practice 

your right-hand performance along with the left-hand playback.

The song will begin playing back.

The part you selected in step 2 will not sound.

Once again press the button you selected in step 2. The button’s indicator will light 

up, and the part will be heard once again.

Even while the song is playing, you can press the track buttons to mute or un-mute 

the sound.

The song will stop.

Drums/

SFX

Accom-

paniment

Left-hand

Part

Right-hand

Part

For more on music files, refer 

If a single Track button 
includes more than one 
instrument and you want to 
mute just one of those 
instruments, take a look at 
“Modifying the Settings of 
Each Part” (p. 114).

When playing back SMF files 
for Roland Piano Digital series 
instruments, and the [3/
Lower] button and [4/Upper] 
button do not correctly control 
the left/right-hand 
performances, please change 
the “Track Assign” settings.
Please refer to “Changing the 
Parts Assigned to the Track 
Buttons During SMF Playback 
(Track Assign)” (p. 89).

When a single Part is not 
played, it is called “Minus 
One.” Using Minus One, you 
can mute out a particular 
instrument and play the part 
yourself.

You can adjust the balance 
between the keyboard and 
song volume levels. Check out 
“Adjusting the Volume 
Balance for Each Part 
(Balance)” (p. 63).