“South London artist Sam Howard, aka Halls, adorns his work from head to toe in hollowed-out, airy lulls. Howard's austere "White Chalk", the second track of his debut LP Ark (out October 15 via No Pain in Pop), subsists on the quiet tension that hangs before each of his understated piano chords and mournful vocals, their effect increased by the song's heavy-footed pace. That focus on timing and su”