original: Following the death of Schidlof from a heart attack in 1987, the Amadeus Quartet disbanded.
simplifications: The Amadeus Quartet disbanded after the death of Schidlof from a heart attack in 1987. After the death of Schidlof in 1987, the Amadeus Quartet broke up. After Schidlof dies of a heart attack, the Amadeus Quartet broke up. After Schidlof died from a heart attack in 1987, the Amadeus Quartet broke up. After Schidlof died from a heart attack in 1987, the Amadeus Quartet disbanded. The Amadeus Quartet broke up after Schidlof died in 1987. Schidlof died from a heart attack in 1987. After the Amadeus Quartet disbanded. After Schidlof died of a heart attack in '87, the Amadeus Quartet broke up. The Amadeus Quartet disbanded after the death of Schidlof. Schidlof died from a heart attack in 1987 Following Schidlof's death from such a heart attack in 1987, the Amadeus Quartet disbanded.