I've never heard a better sound on the street. Sam is a quality busker. She's classically trained but has created her own unique sound using a loop pedal. She starts by plucking the strings to lay down a bass line and then builds upon that. It was a mesmerising performance. She's just at the very beginning of her career and I'm sure she's going to make a name for herself. You decide. Have a listen. You heard her here first!