Possible Clues:

• Angry about a hybrid style of music
• Change loyalty
• Irritated about mixing styles
• Change one's bank perhaps
• No more anger, it seems, so go to the other side
• Now one has finished being angry, change sides
• C&W/pop hit, e.g.
• Go from country to pop, e.g.
• Successfully combining two styles in bridge, perhaps
• Point of intersection