Listening to Arnold J.’s new single, "Muddy Waters," isn't quite like anything else swirling around right now. It arrives with the gentle insistence of incoming tide, pulling you into its specific gravity. Arnold J., Ghanaian-born and now Canada-based, weaves a sound tagged as alt-country and folk, but those labels feel thin, like trying to contain smoke. There’s earthiness, sure, but his soulful vocal lines...

Because of the deft manner in which she combines the styles of country music, pop music, folk music, and the music of her Brazilian ancestors, Anna Lopes stands out as a bright light in the huge musical tapestry of linked genres and worldwide influences that characterises the music business. At the age of 19, she uprooted her life and travelled to the United States to...