Make the piece new in very subtle ways

From Ellen Langer's Mindfulness:

What would happen if everyone were equally respected and encouraged to be mindful? We tested this with symphony orchestras, which are generally hierarchical. In one orchestra each player was told to make the piece of music she or he was to play new in very subtle ways that only that player would recognize. The other orchestra was to try to replicate a past performace of the same piece of music that its members felt was particularly good.  The performances were taped and then played for audiences unaware of the experiment. In addition, all of the musicians were given a questionnaire asking them how much they enjoyed their performance. Audience overwhelmingly preferred the mindfully played piece, and the musicians preferred playing it mindfully. The importance of this work for group process to occurred to me only when writing up the research paper. One might think that if everyone essentially did it "their own way," teh result would be chaos. (They were playing classical music, not jazz). Nevertheless, when everyone did it their own way, making it new in very subtle ways, each person became more present in the same moment, and the result was a superior coordinated performance. (xx)