He cast off his old skin, fundamentally altering his studies, homeland, and life, thereby charting a new future. Recorded at Sound on Sound Studios in Montclair, New Jersey, in January, 2024, 'Ancestral' was influenced, in part, by O'Gallagher's PhD studies into the music of John Coltrane, and reunites the versatile reeds player with guitarist Ben Monder while, notably, features the first-ever recorded collaboration between master drummers Andrew Cyrille and Billy Hart. "Basically, my PhD (available on O'Gallagher's website) is an analysis where I transcribed all of Trane's solos, spelling out what he does on his late recordings 'Interstellar Space' and 'Stellar Regions'. And it shows that free music is not free, not the way people think it is.

Trane was definitely thinking about organization in those records. This research definitely gave me ideas about how to be freer within the systems that I had developed, and how to perceive them in a more organic way." O'Gallagher's latest recording marks a significant artistic evolution, following a period of considerable personal change. After leaving Brooklyn, New York, he and his wife relocated to the UK before ultimately settling in Lisbon, Portugal. This journey, coupled with dedicated study, profoundly shaped his new music. O'Gallagher, Monder, Cyrille, Hart, and Coltrane: a potent brew. In an album consisting largely of first takes, O'Gallagher's compositions vary from through- composed pieces to skeletal charts to full- blown group compositions/ improvisations.