The piece is scored for solo alto saxophone, jazz drum kit, 3 flutes (nos. 2 & 3 doubling piccolo), 3 oboes (no. 3 doubling cor anglais), 2 clarinets in B♭ (no. 2 doubling clarinet in E♭), bass clarinet, 3 bassoons (no. 3 doubling contrabassoon), 4 horns, 4 trumpets (no. 1 doubling piccolo trumpet), 3 trombones, tuba, timpani and percussion.
The playing time is approximately 18 minutes.
The score is prefaced by a quotation from Elizabeth Barrett Browning's poem A Musical Instrument:
O what is he doing the great god Pan
Down by the reeds by the river.
Spreading ruin and scattering ban...[2]
Harrison Birtwistle has said of the piece:
I have called the work a dithyramb, in Classical Greece a choric song in honour of Dionysus, whose wild exuberance here runs riot. The soloist, as chorus leader, is identified with the mythic god Pan... The title Panic refers to the feelings of ecstasy and terror experienced by animals in the night at the sound of Pan's music.[1]
The music is heavily focused on the solo saxophone which plays almost uninterruptedly throughout, at times seeming to overwhelm the accompanying wind and percussion. Some commentators have noted that the saxophone is clearly identified with Pan himself ("there appears little doubt about the soloist's identification with the work's protagonist"[2]).
The overall style of the music has been described as "raucous",[2] "violen[t]",[3] "wild" and "chaotic".[4]
Panic has been called a Succès de scandale due to the widespread negative press it received at its premiere.[5]
As it was part of the programme of the Last Night of the 1995 Proms season it was broadcast live on BBC television and Radio 3. Although the Proms has a tradition of premiering new music, the Last Night was traditionally associated with 'safe' traditional patriotic pieces such as Rule Britannia and Land of Hope and Glory.[6] Subsequently the BBC was reported to have received "thousands" of complaints.[7]
Some newspaper comments were scathing, chiefly from non-music journalists who had their attention drawn to it because of its prominent scheduling, although John Harle said that he "read a nice review on the Monday [following the concert]".[8]
There were in fact several positive notices by music journalists: Hilary Finch in The Times stated that the piece had "tremendous, unremitting energy".[9] Robert Maycock in The Independent stated that "John Harle played it with astonishing physical and expressive power, and the drummer, Paul Clarvis, matched precision with brilliance."[10]
These more measured views have remained. In 2012 it was described by Tom Service in The Guardian as "one of the most dazzling and dynamic pieces written in the last 20 years".[11]
Mark Audus (1996) Liner note from the Argo recording
"All Quiet on the Chariot of Fire", The Times, Monday September 18, 1995
The Independent, Monday September 18, 1995