Yamaha CS15D is a dual-channel synthesizer with a total of 29 preset tones divided into two channels, plus one manual-control channel. It is designed to provide improved real-time performing properties while retaining its originality as a synthesizer. The CS15D features a variety of controls for manipulating the sound, including:

• TUNE/DETUNE/PITCH Bend Wheel: These controls allow you to change the pitch of the sound. The TUNE control is used for fine-tuning the pitch, while the DETUNE control can be used to create a chorus effect. The PITCH Bend Wheel can be used to bend the pitch of the sound up or down.