William J. Brennan, Jr., American Federation of Musicians of United States and Canada v…
“ If the union may not require that the full-time leader charge the purchaser of the music an amount sufficient to compensate him for the time he spends selecting musicians and performing the other musical functions involved in leading, the full-time leader may compete with other union members who seek the same jobs through price differentiation in the product market based on differences in a labor standard. ”
