Any number can play this game, the more the merrier. Each player is told to play some imaginary instrument. The leader with an imaginary baton, begins by humming some lively, familiar tune. The players follow with motions suitable to their instruments and sing the tune the leader is humming.

When the leader pretends to play some instrument, the player who has that imaginary instrument, must pretend he is leader and beat time with the baton, but as soon as the real leader changes the instrument or beats time again the player must continue with his own instrument.

The leader must be quick to change from one instrument to another and the players must be quick to follow him, for if they don't, they have to leave the orchestra until the piece is over.