Ordinarily, an orchestra leader is self-employed and the members of the orchestra
            are employees. The leader selects the members, rehearses and directs them, holds out
            to the public as being able to furnish a musical organization, and enters into contracts
            to furnish music. The leader has the primary right to control the orchestra members
            as to how, when, and where they work. Usually, the leader pays all expenses the orchestra
            incurs. Quite often, the leader receives a lump sum for an engagement and, after paying
            expenses and the salaries or hourly wages of the other members, suffers a loss or
            realizes a profit from the undertaking. The orchestra may be a permanent organization
            or it may vary in size and personnel depending on when the musicians or engagements
            are available.
         
         The purchaser of the music deals directly with the leader. The purchaser often does
            not even know the names of the other members, but may be generally familiar with the
            type of music they play. The leader may select, rehearse, and direct the playing of
            the music. The purchaser retains only such control over the leader as to obtain the
            desired result; that is, the privilege of making suggestions on the type or style
            of music, number of musicians wanted, etc.