John Masson and Kate Stewart-Liddon (Masson) are both professional musicians otherwise known as "Heartland".

The Celtic Hour features all types of Celtic music with information and interviews from the traditional music scene.

Past Celtic Hour guests have included : Phil Cunningham, Donnie Munro, Michael McGoldrick, Karen Matheson, Bruce Guthro, Ivan Drever, Back of the Moon, Peatbog Faeries and many others.......

John is also Cuillin FM's Station Manager