Paul Mealor's Aberfan: From Darkness to Light is a concert requiem in the tradition of works that refuse to let grief be the only destination — closer in spirit to Britten's War Requiem than to Fauré's, in that the horror is named, the guilty are pointed at, and the living are asked to carry something forward rather than simply mourn. The commission itself shaped the work's character before a note was written. Aberfan's own community asked that hope and renewal be invoked, that the future sit beside the past. That is a harder brief than pure lamentation — sentimentality is always closer than you think when children's voices are involved — and Mealor's achievement is in navigating it without flinching. The librettist, Grahame Davies, holds his end: narrative and verse in balance, neither poeticizing the horror nor softening the institutional culpability that the National Coal Board's negligence represented. The decision to use children from Ynysowen Primary School and Ysgol Gymraeg Rhyd y Grug is not decorative. It is the work's central argument: that the valley is alive, that the culture persists. Mark Lewis Jones's narration grounds the piece in plain speech, and the orchestral transitions — particularly the cor anglais and oboe in their lyrical melancholy — carry the emotional weight that words can't. The BBC National Orchestra of Wales, absent from the first Aberfan Community Centre performance, gives this second outing its full gravity. At 40 minutes, the piece holds its shape. Mealor uses vibrantly rhythmic and percussive writing to move between registers — grief, anger, celebration — without sounding like a medley of moods. That the children's playful singing feels like the most natural thing in the world, rather than a tacked-on coda of uplift, is the specific craft achievement here. The audience member heard saying they could not have imagined such joy is the best review Mealor could get. The programming context matters too. Anna Clyne's This Moment — meditating on death and life through Thich Nhat Hanh's calligraphy — preceded the Mealor, as did Haydn, Mozart, and Vaughan Williams's Toward the Unknown Region setting Whitman's poem on spiritual death and rebirth. The concert could have been an exercise in dignified grieving. It chose something more demanding: contemplation. That's a harder room to be in, and a more honest one.