Hi,
the sd card for storage. So quick to use for loading & saving.

SD card & panasonic sd writing kit ( optional extra) , because it gives me the option of incorporating audio files into a sequence.

The sounds are great.

best wishes
Rikki
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best wishes
Rikki

SX900, P121 Piano, PA800, Band in a Box 2019
V Arranger/Ketron SD2