heres some info I found on the XD9....


XD 9 Arranger Keyboard


XD9 keyboard, 5 octaves, amplified, 170 Styles,
45 Patterns and Microphone. Hard Disk,
Vocalizer, Sound and Pattern expansion as
optionals.

Complete with an excellent sound generation and
with new Styles and truly explosive Rhythms the
XD9 keyboard is standing to be a true role leader
in live entertainment.

Together with European Folklore and Italian
ballroom music (also renewed and now
traditionally the stronghold of Ketron) the XD9 also
interprets all the new musical trends such as
Dance, Hip Hop, Latin, Latin dance with
outstanding quality, thus finally allowing the
musician to play with the same sound impact as
that of the modern Dance discography.

Furthermore with the revolutionary Drum Remix
function, the XD9 enables the musician to very
easily remix any old Midifile by replacing the
normal Drum Set with new and powerful "Live"
Rhythms that are operated and controlled live by
the player himself !

The Sounds and Rhythms with which the
keyboard is supplied can be expanded by adding
optional Flash cards programmed by the factory
and specialised for various types of music
(Orchestral, Dance, Latin, Ballroom, Piano etc.),
which are simple to install in the instrument.