One could call Lee Fields a master craftsman. With over 40 years of experience, Fields with his backing group The Expressions headline a performance tonight at Union Transfer. He encapsulates the sound of soul; his vocals have a multifaceted feeling maintaining a smooth sweetness while still carrying an authentic heartfelt yearning. With The Expressions accenting the vocals via dramatic strings, bright punchy horns and an omnipresent sensual groove, the connection or concept of retro/old school R&B/soul could be there. However, this sound isn’t as revisited as it is timeless. Locals Market East have the honor of directly supporting the living legend. The acoustic trio released their sophomore EP Children of Summer earlier this year, which possesses their signature graceful, tautly layered vocal harmonies. Also on the bill will be the inspired soul-rock combination of Aaron & The Spell. Union Transfer, 1026 Spring Garden St., 8pm, $18, All Ages – Michael Colavita