| http://www.w3.org/ns/prov#value | - in front of a judge, which many find very difficult.I know a lot about this, because I play in bands, and if I know that another pro musician is present, especially another piano player, or Hammond organ player, rather than the general public, that can rattle me.Third, the student is playing in a unfamiliar environment, as compared to their regular practice room.Fourth, the student is playing on a
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