Modern R&B takes over Outline. Tirzah’s delirious, submerged sound sways with a languid sensuality, but manages to be gripping and even aggressive while seeming to keep things low key. Erika de Casier reinvents some most ellusive qualities of the genre’s ’90s and turn-of-the-millenium golden age while remaining singular. Ninja Tune artist Nabihah Iqbal invites a poetic energy that touches on the cascading longing of dream pop, classic deep house and urgent, rushing ’80s pop.