Last year, Case Oats released one of our favorite debut albums: Last Missouri Exit. As editor Matt Mitchell wrote in their Best of What’s Next profile, “Casey Gomez Walker represents an exciting batch of songwriters sinking their teeth into big emotions and the loose, rambling twang of an ever-present Americana.” She’s a true disciple on David Berman and Kimya Dawson, and her most recent Case Oats single, “Bottom of an Afternoon,” is a “mantra f…