In digital pianos, sound waveform data is typically compressed and stored in internal memory. When played back, it is expanded to reproduce the piano sound. However, due to this process, the playback sound, much like compressed audio formats such as MP3, inevitably experiences some degradation compared to the original sound. The "Multi-Dimensional Morphing AiR Sound Source" and "AiR Grand Sound Source" employ compression technology known as "Lossless Audio Compression." This not only prevents degradation of the waveform quality but also allows for the recording and playback of a massive variety of waveforms. This enables enjoyable performances with beautiful and expressive tones akin to those of grand pianos.

Classical piano pieces span a wide array of styles and genres, each demanding a versatile range of expressiveness in performance. By delving into the distinctive features of different genres, we analyze nuances and sonic qualities, such as string resonance and tone variations influenced by both touch and playing techniques, tailoring them to match each genre's characteristics.  In order to create a fresh new approach to savor the classical piano, we have developed 10 distinct "Classical Piano Repertoire" tones.

The "Key Off Response function" manages the timing of damping, by tracking the movement of keys upon release. With a grand piano, the sound stops when the damper touches the strings. This function provides precise control over the timing of damping, responding to the speed at which the keys are released. This allows for nuanced expressions of touch, such as sounding the next note without cutting off the previous one during repeated notes. You can adjust the Key Off Response function in three stages, tailoring the keyboard's characteristics to match the musical style, whether it leans towards legato or staccato.

The Visual Information Bar introduces a unique feature that uses the length of light to visually represent the strength and weakness of keystrokes. While discerning subtle differences in keystroke velocity through listening alone can be challenging, this function offers a clear visual understanding. For example, when aiming to incorporate variations in expression within the same phrase, the visual display serves as confirmation of changes in keystroke strength. For duet performances using the duet function, the bar is split in the center, displaying the velocity of keystrokes on both the left and right sides. Additionally, when playing back songs recorded with the built-in MIDI recorder, keystroke velocity can be observed on the Visual Information Bar. For example, you can check things that are difficult to ascertain while playing, such as how dynamic changes in sound are included
into the flow of the overall song.

While pedals, which are crucial to piano performance, often remain inconspicuous at the feet, the Visual Information Bar brings their subtleties to light. By visually displaying the depth of the damper pedal press, this feature makes the traditionally hard-to-discern sensations of shallow or deep pressing instantly clear. The light length serves as a visual indicator, visible to both the player and the instructor, facilitating the communication of precise pedal techniques. During duet performances, the centrally divided Visual Information Bar responds to the depth of pedal pressing on each side. Additionally, during playback of songs recorded with the built-in MIDI recorder, the damper pedal's depth is showcased visually. For example, you can check things that are difficult to understand just by listening, such as how a chord resonates depending on the timing of the pedal being used.

Harness the power of the Visual Information Bar to transform your piano experience. This feature ingeniously displays beat timings through captivating light motions on the front panel, effectively doubling as a metronome. With five distinctive light patterns at your disposal, you have the freedom to customize the display according to your preferences and specific musical goals.

The Visual Information Bar can also provide a simplified display of the digital piano’s
current status. In addition to displaying the approximate playback position when playing back with the Instant RePlayer, it also shows Bluetooth pairing errors, current writing status, as well as which item is selected among multiple settings. This makes it easy to understand the settings of the instrument even without an LCD screen.

When you connect the device via Bluetooth and play music, it comes equipped with an illumination function on the Visual Information Bar that lights up in sync with the music. There are four lighting patterns, allowing you to enjoy music with added visual effects.

*The Visual Information Bar can also be turned off.

Pressing the recording button starts MIDI recording to the internal memory. It allows recording of up to 2 tracks, enabling separate recording of right-hand and left-hand data. This facilitates improved efficiency when practicing each hand individually, layering sounds for practice, and enjoying solo performances with overlapping recorded playbacks. Additionally, it comes with an Audio Recorder, allowing you to record performances as audio data on a USB flash drive (AP-750 also supports recording to the internal memory). Data saved with MIDI or Aoudio Recorder can be transferred to other devices like smartphones or computers for streaming or editing.

The AP-750 introduces "Scenes," a feature that presets tone, resonance, and reverberation combinations etc., Ideal for reliving the experience of different historical periods, famous composer styles, or various performance settings. With 10 predefined scenes covering composers, eras, and playing scenarios, plus the option to save 10 custom scenes, it provides a versatile and personalized playing experience.