Ferneyhough was awarded the Mendelssohn Scholarship in 1968 and moved to mainland Europe to study with Ton de Leeuw in Amsterdam, and later with Klaus Huber in Basel.

[5] Between 1973 and 1986 he taught composition at the Hochschule für Musik Freiburg, Germany,[6] where his students included Toshio Hosokawa, Joël-François Durand, Roger Redgate, Alessandro Melchiorre, Giulio Castagnoli, Kaija Saariaho, Joël Bons (winner of the 2021 Grawemeyer Award), Hans-Ola Ericsson, and Rodney Sharman.

The Royan Festival of 1974 saw the premiere of Cassandra's Dream Song, the first of several pieces for solo flute, as well as Missa Brevis, written for 12 singers.

[3][4] Ferneyhough's actual compositional approach, however, rejects serialism and other "generative" methods of composing; he prefers instead to use systems only to create material and formal constraints, while their realisation appears to be more spontaneous.

By the same token, however, the impact of the time vector "damages" the event-object, thus forcing it to reveal its own generative history, the texturation of its successivity: its perceptual potential has been redefined by the collision.

The energy accumulation and expenditure across and between these confrontational moments is perceived as a form of internalized metronome, and in fact it is a version of this procedure which most clearly fuels the expressive world of Mnemosyne: the retardational and catastrophic timeline modifiers are employed equally to focus temporal awareness through the lens of material.

His opera, Shadowtime, with a libretto by Charles Bernstein, and based on the life of the German philosopher Walter Benjamin, was premiered in Munich on 25 May 2004, and recorded in 2005 for CD release in 2006.

"[19] The Guardian's Tom Service called La Terre est un Homme "one of the most significant achievements in late 20th-century orchestral writing", and also recommended the Carceri d'Invenzione pieces, Lemma-Icon-Epigram, Terrain, and the string quartets.