I recommend the novel "Eliminated in the talent show, I became a superstar with a ballad" to you. The female lead, Su Qingyun, sang the song "South Mountain South" on a talent show with a broken wooden guitar, setting off a frenzy of folk songs. Although it wasn't "Blue Lotus", this novel also had a plot where the female lead made her own guitar and sang for the male lead. It was worth reading. I hope you like this fairy's recommendation. Muah ~😗