Glass Symphony No. 4

Tramway, Glasgow - 01/10/26

Royal Scottish National Orchestra – Patrick Hahn, conductor.

This performance of Philip Glass’s Symphony No. 4, ‘Heroes’, by the Royal Scottish National Orchestra in Glasgow, under the baton of Patrick Hahn, offered a study in structural compositional translation to mark the tenth anniversary of the passing of legendary singer-songwriter David Bowie – specifically his lean, noir, art rock Berlin period.

Accompanied by live generative visuals mirrored on three screens from digital artist Tatsuru Arai, the hour-long concert, part of the eleven-day Sonica Festival, focused on the mechanics of adapting vernacular materials into a formal symphonic structure underwritten by Glass’s neo-minimalist musical palette.

When Philip Glass created this work, his primary objective was to treat the Bowie/Brian Eno compositions as fundamental raw material (much as classical composers have historically adapted folk melodies or chorales), and to build from them a completely independent work. His focus was on the foundational architecture: the underlying chord progressions, basslines, and primary vocal themes written by Bowie and Eno.

The evening opened in an impromptu way, with Hahn in the spotlight of a darkened arena playing the five-minute solo piano opening to Glassworks, characterised by its continuous, persistent two-against-three rolling pattern. This is minimalism close to its purest. As he played, members of the orchestra gradually appeared from the shadows in ones, twos and threes, and the lights raised slightly.

Next came the prelude to Glass’s 1983/4 opera Akhnaten, which I recall first hearing at its UK premiere, given by English National Opera at the London Coliseum in 1985. On this occasion the piece functioned as an ambient baseline for the immersive atmosphere at Tramway, testing the orchestra’s dynamic balance through its cumulative arpeggios and low-register brass motifs.

For his Symphony No. 4, composed in 1996, Glass uses six tracks from the 1977 David Bowie and Brian Eno album Heroes as his source material. Rather than transcribing the original recordings or reproducing specific performance features, such as Robert Fripp’s compelling lead guitar lines, Glass isolates the underlying harmonic framework and vocal melodies. These elements are re-engineered using his characteristic techniques: rhythmic ostinatos, additive repetition, the building of layers, and subtle shifts in polyphony.

Under Hahn’s direction, the enlarged orchestra executed these interlocking patterns with metric precision. In the opening movement, ‘Heroes’, the driving propulsion of the string section provided a steady grid over which the woodwinds introduced the primary thematic material. The brass section then held the long-form melodic lines in ‘Abdulmajid’ and ‘Neuköln’ maintaining clarity without pushing the volume past the limits of the space and its clean, relatively dry acoustic.

Arai’s visual contribution operated on a parallel structural level. Rather than presenting figurative patterns, the software generated geometric forms and grid patterns directly synced to the acoustic frequencies and timing of the orchestra. These shifted between natural and artificial images. In movements with higher rhythmic density, such as ‘V-2 Schneider’, the visual pulses mirrored the accents in the brass and percussion, adding a spatial dimension to the temporal organisation of the score.

This well-received performance highlighted both the strengths and constraints of Glass’s compositional method. By stripping away the studio production layers, timbre variations, and tape treatments of the 1977 album, Glass reduces the tracks to their core cadence and motivic themes. While this process reveals the durability of Bowie and Eno’s song-writing, the uniform reliance on repetitive figures across six movements can flatten the contrast, drama and variation present in the original recording.

Formally, the concert demonstrated how minimalist compositional strategies can dismantle and reassemble found materials, in this case the underlying patterning of a classic rock album, within an orchestral framework. Performance-wise, the RSNO, Hahn and Arai presented Symphony No. 4 as a disciplined technical exercise, imbued with as much warmth of texture and character as a compositional style like this is capable of delivering. Not a thrilling evening, but an interesting one.

* More on the 2026 Sonica Festival here: https://sonic-a.co.uk/events/sonica-glasgow-2026