An optical electronic musical instrument device (“e-instrument”) that is configured to identify colors and output sounds that are associated with the identified color is disclosed. The e-instrument may detect colors using a color sensor and generate a color signal as a result. Additionally, the volume of the sound may be influenced by a motion signal generated by a motion sensor, wherein the lower or higher the motion signal's value corresponds to a lower or higher volume. The color and motion signals may be sent to one or more processors, either local or remote from the e-instrument, that generates or retrieves a sound signal based on the color and motion signals. The sound signal may then be transmitted to a speaker and the speaker outputs the sound signal accordingly. The sound signal may be any instrument, including a sound of a guitar, piano, drum, etc.