Roland Atelier AT-90SL Owner's Manual page 33

Convenient Functions
3.
Touch <
appropriate for the character of the song.
The Registration buttons [1]–[4] flash.
Panel settings appropriate for the keyword will automatically be called up
for the Registration [1]–[4] buttons.
4.
On the Lower keyboard, play a chord.
At the moment you play the keyboard, the Intro will begin, and then the
Rhythm and Automatic Accompaniment will play.
5.
Press a Registration button from [1] through [4] to switch the
panel settings.
6.
Press the [Intro/Ending] or [Start/Stop] button to stop the
Rhythm.
7.
To end the Music Assistant function, press the [One Touch
Program] button, extinguishing its indicator.
32
>< > to switch screens, and touch a keyword
Max Max Max Max
Min Min Min Min
Harmony Intelligence