The GP-300 reproduces the finest nuances of the world's most famous grand pianos. A high-quality amplifier system with six speakers creates a complex sound like that known only from acoustic grand pianos.
The Layer function layers two timbres, such as soft piano sounds combined with bowed string instruments, perfectly suited for ballads as well as slow and romantic songs. This piano also gives you the possibility of dividing the keyboard into two zones playing differing timbres (e.g. bass with your left hand and piano or vibraphone with your right hand).
The Duet mode is designed similarly to divide the keyboard into two zones. However, in this case, the range and the timbre are identical. This feature allows two musicians to play a piano duet or to practice together on one instrument.
The transpose function shifts the scale on the keyboard by a set interval, for example so that an F would be played with the C-key. Touch response enables dynamic playing by differing sound intensity and sound behaviour in response to the keystroke. A light, slow stroke sounds soft and gentle while a hard stroke sounds loud and powerful.
The Lid Simulator simulates the different sound characteristics (brighter/duller) when playing with an open or closed piano lid. There are four simulation levels to choose from depending on personal taste: open, removed, half open or closed.
The audio recording function enables the user to record in professional CD quality onto a USB storage medium or SD card (depending on the instrument). The recording can be burnt or played back on every common medium. The metronome keeps the beat in the preset time signature as an orientation guide for tempo.