Roland KF-90 用户手册

You can change the arrangement of automatic accompaniment and the 
accompaniment pattern.

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There are two accompaniment patterns: the original one, and a variation 
that’s a little more flowery. In addition, a fill-in (a short phrase) is added at 
the points where the accompaniment patterns change, which adds more 
variation to the song. It can be effective to use the quieter original pattern for 
the first half of the song, and the variation pattern for the second half.

fig.02-13

Pressing these buttons during a performance inserts a one-bar fill-in in time 
with when the buttons were pressed, and the accompaniment pattern 
changes.

You can play a fill-in without changing the accompaniment pattern by 
pressing whichever of the Fill In [To Original] and FIll In [To Variation] 
buttons that is flashing while a performance is in progress.

A short improvisational phrase inserted at the bar line is called a “Fill-In.” 
The KF-90 plays the optimal phrase for the selected Music Style.

You can change the 
accompaniment pattern 
without inserting a fill-in. 
In that case, assign the 
function to the pedal and 
use it. See “Assigning 
Functions to Pedals” (p. 
147).