The London Sinfonietta’s Jerwood series showcases young composers who would otherwise stand little chance of CD exposure this early in their careers. Over the past four decades the Sinfonietta has had an enviable record in identifying and nurturing new talent, so although it’s impossible to predict whether the likes of James Olsen and Christian Mason will ultimately make the sustained impact of a Tavener or a Birtwistle, the Sinfonietta’s seal of approval gives them the best possible start.

Mason (b1984) is the youngest, and his In time entwined, in space enlaced belies its cumbersome title to offer a bracing exploration of a sound world which is sometimes brittle, sometimes lyrical. The spatial distribution of the players and “the ethereal sound of 36 handkerchief-harmonicas, placed throughout the audience” go for less on disc than they do in the hall but the piece manages to be something more than the sum of its influences. James Olsen’s Chameleon Concerto is equally assured and rather more obviously derivative, the paradoxical objective of a concerto which features two soloists yet resists giving them the traditional kinds of prominence proving less counterproductive than seems likely in the early stages.

I found less to enjoy in Claudia Molitor’s distinctly hollow untitled 40 [desk-life] (live performance involves a film) and Larry Goves’s Springtime, an effortful setting of a downbeat poem by Matthew Welton. The disc also includes a work by a more senior composer, Kenneth Hesketh (b1968). Detail from the Record is both serious and substantial, and is given a well considered performance. It seems less striking or genuinely eventful than some of Hesketh’s other recent pieces but is certainly not short of imaginative instrumental colourings.