Tradition and technology in harmony create a concert grand piano virtually anywhereThe sound of a piano changes significantly depending on how it is played. In order to provide this high level of expressive power from a digital piano, two concert grand pianos were selected by professional pianists, regulated and tuned by master technicians and sampled by KORG engineers. This complex process enables the C1 to simulate the experience of playing either a German grand or a Japanese grand, and were chosen to reflect a broad musical spectrum providing faithful recreations of dark, subtle and intense classical music through to bright and powerful jazz and pop music. The C1 gives you natural and satisfying grand piano performance at home, on stage or in the studio.Bluetooth audio supportConnect a Bluetooth device such as a smartphone to the C1 Air and enjoy playing the piano along with your stored music or other audio. When you are not playing the piano, you can use the C1 Air as a powerful Bluetooth speaker system.The Stereo sound optimizer that gives presence to the sound when the headphones are usedThis gives presence to the sound that is reproduced, as if playing an acoustic piano, even when headphones are used. You can experience comfort even with a long performance.New speaker system delivers high output and great soundThe C1 features a specially designed speaker system that delivers the incredibly realistic sounds of the C1 pianos and other instrument voices in superb detail. High-quality speakers are powered by a 25W x 2 amplifier to deliver rich sound with depth and clarity. From rounded bass to brilliant highs, you will experience the nuanced, expressive power of a grand piano in your own home.Two-track song recorder to instantly record your performanceTwo-track digital recording is instantly available to help you analyze or archive your performances. You can record each hand separately or record an additional track onto a previously-recorded song. Playback tempo can be adjusted and up to 99 user songs can be saved in the C1.A variety of keyboard layout optionsSimply by pressing one button, you can apply a bass sound to the lower register of the keyboard. Play piano with your right hand and bass with your left to instantly enjoy jazz performance styles. By pressing two of the tone buttons simultaneously, you can easily layer two sounds together. For example, layer piano and strings to play with a rich piano and orchestra combination. There’s also a partner mode that enables you to divide the piano keyboard into two identical sections on left and right, each with their own damper pedal. This is a great way for teacher and pupil to play duets or copy and practice during lessons.Equipped with three pedals as standard with half-pedaling featureThe pedals are an essential element of piano performance, and the C1 is equipped with the full complement of three pedals found on a grand piano: damper, soft and sostenuto. The damper and soft pedals also feature half-pedaling for even more detailed expression.