摘要: Music emotion recognition today is based on techniques that require high quality and large emotionally labeled sets of songs to train algorithms. Manual professional annotations are costly hardly accomplished. There a need for datasets public, highly polarized, in size following popular representation models. In this paper we present the steps followed create two such using intelligence last.fm community tags. first dataset, categorized an space four clusters adopted from literature observations. The second dataset discriminates between positive negative only. We also observed mood tags biased towards emotions. This imbalance was reflected cluster sizes resulting obtained; they contain more than ones.