From the tweet "I feel like singing the song human sadness by Julian Cassablancas and The Voidz or some other sad music. #depression #sad #sadness", identify which emotions are conveyed. Choose from anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, and trust. If no emotions are evident, respond with "neutral or no emotion".
pessimism, sadness