Central Conservatory of Music _ A seventy-year-old doctoral supervisor voluntarily confesses to "under-the-table rules" with female students. Central Conservatory of Music _ A seventy-year-old doctoral supervisor voluntarily confesses to "under-the-table rules" with female students. Central Conservatory of Music _ A seventy-year-old doctoral supervisor voluntarily confesses to "under-the-table rules" with female students.