Tender Mercy, the solo project of singer-songwriter and guitarist Mark Kramer, walks a tightrope between not quite enough and Goldilocks Zone perfection. There is a quiet seething to his music that recalls Low or Talk Talk, a coiled tension that’s buried in the melancholia. More straightforward than the last Tender Mercy record, 2016’s experimental It Was You, and warmer than the 2015 release Sacred Sphinx, Leave Little Room continues an evolution to sonic purity. Tender Mercy’s high points are meditations on ambience, a slow-motion unraveling of his soul, and Kramer’s greatest asset is the earnestness and vulnerability in his delivery.