Harold Pinter is 75, and not in good health, his esophagus ravaged by cancer and his famous voice “notably weakened.” But somehow, the playwright has willed himself to create a short but profound new radio play, which will receive its premiere next week on BBC Radio. “For Voices, Pinter has reworked five of his later plays – One for the Road, Mountain Language, The New World Order, Party Time and Ashes to Ashes – into a fragmented narrative on cruelty, torture and oppression, which is interrupted, accompanied and complemented by [composer James] Clarke’s mercurial score, performed by the BBC Symphony Orchestra, the soprano Eileen Aargaard and an Azeri singer, Fatma Mehralieva, among others.”