Brann Dailor of Mastodon has discussed the band's upcoming album 'Marrow Deep' in recent interviews, reflecting on the loss of guitarist Brent Hinds and the emotional process of creating music in his absence. Dailor also addressed the decision to include Hinds' passing in the documentary 'The Mastodon In The Room,' noting initial hesitation but eventual acceptance of its importance. The album is described as a fitting expression of the band's current state, shaped by grief, brotherhood, and creative resilience.