Original sentence: It was the most popular of her compositions during her lifetime; although "I Love You Truly" (an enduring favorite as a wedding song) became more frequently performed later.She is possibly best remembered for writing the song "I Love You Truly", for which she became the first woman to sell one million copies of a song.that parlor song continues to be used at weddings over a century after its release
Edited sentence: It was the most popular of her compositions during her lifetime although "I Love You Truly" became more frequently performed later.She is possibly best remembered for writing the parlor song song "I Love You Truly", for which she became the first woman to sell one million copies of a song; that piece is an enduring favorite as a wedding song