The study of music and emotion seeks to understand the psychological relationship between human affect and music. It is a branch of music psychology with numerous areas of study, including the nature of emotional reactions to music, how characteristics of the listener may determine which emotions are felt, and which components of a musical composition or performance may elicit certain reactions. [1]

There Exists 3 Approaches to solve this problem:

• Thayers Emotional Model
• Dataset Annotation by Music and Emotion Psychologist Experts
• Classification based on Tags Generated by the Song

Results can be improved by weighting

• Music Lyrics
• Music Genre

• Plukchik Wheel of Emotion

• Basic Emotion Wheel

• 2D Grid Representation of Emotion Labels

[1] Wikipedia: Music and Emotion - https://en.wikipedia.org/wiki/Music_and_emotion

[2] Wikipedia: Emotion - https://en.wikipedia.org/wiki/Emotion