Home Events The Nashville Sound In Boston: Jason Isbell & The 400 Unit At Blue Hills Bank Pavilion – Review & Photos The Nashville Sound In Boston: Jason Isbell & The 400 Unit At Blue Hills Bank Pavilion – Review & Photos planetsixstring June 29, 2017 comments off Tweet on Twitter Share on Facebook Google+ Pinterest Check out a full review and photos from Tuesday’s Jason Isbell & The 400 Unit concert in Boston including “Whipping Post” video.