900 high-quality built-in tones support professional level performances in virtually any musical genre.

A compilation of Versatile Tones is also available to reproduce realistic guitar harmonics, bass glissando and other tonal variations characteristic of stringed instrument fingering.

A Tone Edit function supports intuitive sound production with simple knob operation. Users can draw on a selection of 20 effects to transform sounds dramatically.

A built-in Hex Layer (MZ-X500 only) overlays up to six different tones to produce polyphonic sound that contributes to powerful musical expression. A Bass Synth function that generates monophonic sound and portamento reminiscent of traditional analog synthesizers is also built in.

The traditional rhythms of Latin, European, Middle Eastern, Asian and other cultures around the world are incorporated along with such enduring favorites as rock, jazz and pops rhythms. Players can also set automatic accompaniment functions such as Auto Fill-in, Break, Intro/Ending and Synchro Start/Stop to produce their envisioned performances to perfection. The system’s ability to handle tension chords as well makes it easy for players to incorporate technical arrangements into their performances.

The Pattern Converter converts SMF data to rhythm data in the MZ-X Series format that can then be imported freely into the keyboard.

High-quality sampling is enabled at 44.1 kHz via the LINE IN or MIC IN terminal. Users can assign sounds to the pads as audio samples.
Various percussion sounds have been sampled and built in as pad tone presets, and the 16 touch-response pads can be used to add percussion arrangements to keyboard performances.

Players can use the touch-response pads to insert original preset phrases or any of the numerous built-in phrases suited to various musical genres into performances. When chords are specified in the Auto Accompaniment Mode, appropriate phrases are integrated naturally into the performance when the chords are played, deepening the music's expressive power.
An original CASIO articulation function permits modification of sound production nuances during performances.

The 13.46cm (5.3") color touch LCD affords intuitive operation. Touch control makes it surprisingly easy to call up impressive sounds and rhythms, and to adjust synth and effector parameters quickly and freely in real time. Users can leverage inspiration obtained through live shows and music production in their performances and compositions.
The cockpit design has the operation buttons and display laid out in front of the performer. Substantial improvements in display visibility and pad and knob operability provide smooth, stress-free control.

Originally developed 20W + 20W high-capacity speakers are incorporated in a unilateral 4.3L 2-way bass reflex system. With a 4-band parameter equalizer enabling finely detailed sound adjustment, moreover, users achieve impressive, high-quality sound production whenever and wherever they perform.

A built-in Audio Recorder saves players’ performances to USB flash memory as audio data. A Center Cancel function is installed to enable players to cancel or suppress central sounds such as vocals or instrumental solos contained in an audio file.
Format: WAV (16-bit, 44.1 kHz, stereo)

A large-capacity user memory enables players to save original tones and rhythms in the keyboard for use in later performances.
(MZ-X500: 256MB / MZ-X300: 128MB)

LINE IN, MIDI and other pedal terminals exhibit expandable expression enhancement. Externally input mic or audio device effects can also be applied.