Tickets to hear Luciano Pavarotti, Jose Carreras and Placido Domingo in the rerun Three Tenors concert scheduled for Los Angeles' Dodger Stadium in July will cost from dollars 310 to dollars 1,012 ( pounds 217 to pounds 708) . . . On 6 March, the mezzo-soprano Della Jones opens the London concert season's best-kept secret - Sunday afternoon recitals in the intimacy of the London Lighthouse. Tickets cost pounds 7 . . .