Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: Watching the NY Phil webcast.  Something missing.  Reminds me of a blithe Journey's End I once saw on Bway.  Might just be the Gershwin.
This tweet contains emotions: 
anticipation, optimism