For over 18 years, Spectral Sound, the dance music imprint of Ghostly International, has thrived at the forefront of techno and house. It has been a source of support for numerous DJs and producers during that time, from Matthew Dear and Benoit & Sergio to Avalon Emerson and Hieroglyphic Being. Now, Spectral brings the past alongside the present with its latest release, a compilation that offers a vibrant cross-section of the current moment in underground dance music. Despite the wide-ranging selections on Spectral 139, a through line of classic style and infectious energy emerges from the up-and-coming and established artists alike. The double-12" compilation, as well as each individual single, features original work by Los Angeles-based artist Nina Hartmann. Her designs have appeared on releases from labels such as Ascetic House and Big Love, and the pieces for Spectral 139 continue to develop her cryptic aesthetic. The marriage of Hartmann's striking, high-contrast symbols with such bold dance music speaks to a collection that aims to stand out.