Music Cork, the industry showcase, returns to the city for a second year. Top of the bill is Isaac Green, the esteemed A&R at Columbia who has worked with everyone from Arcade Fire to Calvin Harris, writes Ed Power.

Within 24 hours of her song Please Don’t Go, and the accompanying video, appearing on Facebook, Stephanie Rainey had more than a million hits. Today, the Cork singer is set for global success, writes Ed Power.