London-based electro-R&B boy/girl duo 4am follow up their highly praised debut release 'More' with 'Yearning & Calling' - a stunning second effort that perhaps overshadows their original release. Sonically, it has strong desires to go bigger than it does, but thanks to those crystalline, delicate vocals, it remains restrained but with an added richness that an instrumental alone wouldn't be able to accomplish.

In the last year or so, I've become absolutely obsessed with another London-based duo The Code. 4am and 'Yearning...' follow in a similar vein as The Code but with a stronger emphasis on the vocals. Think more along the lines of The xx, or perhaps London Grammar. Trust me, this is very special.