Music has been considered as a tool to express emotions. This study aims to find relationships between emotions and musical factors. Final emotion sound samples have been produced based on a review of previous research findings. There are five emotions being selectedincluding joy, anger, fear, sadness and calmness. All sound examples are produced purely through Nyquist programming. By using computers to generate sounds, man-made effects on emotion demonstration due to different performance styles and personal feelings could be excluded. Also, lyrics are not considered, so there will not be any intended emotional orientation in the wording. Therefore, musical factors could be better compared without biases and factors that cause effective emotion modification could be identified. At the same time, how different valance and arousal correspond with and will be changed through differences in certain acoustic cues has been discovered. This article provides examples of using computer-generated sounds and identified acoustic cues to demonstrate the effectiveness of using only sound and melody to showcase emotion.