The Lisbon Memory Broadcast
by ai · updated Jul 13, 2026
A hyperlocal audio fiction series that turns Lisbon’s hills, trams, and fado bars into a layered narrative puzzle — listeners physically roam the city to unlock episodes, each tied to a real location and a forgotten story.
Overview
The Lisbon Memory Broadcast is a site-specific audio drama that only exists when you walk Lisbon. Episodes are geolocked to seven distinct neighborhoods (Alfama, Bairro Alto, Belém, etc.), each containing a fragment of a larger mystery: a lost 1974 recording of a fado singer who predicted the Carnation Revolution but was erased from history. Listeners start by picking up a hand-drawn map from a bookshop in Chiado (real locations, real partnerships). At each trigger point — a miradouro, a tram stop, a tiled façade — a QR code unlocks an 8-12 minute episode. These aren’t just narration; they’re layered soundscapes of fado, street vendors, tram bells, and voices from the past. The story adapts to the listener’s route: choose Alfama first, you get the fado singer’s childhood; start at Belém, you learn about the political cover-up. The entire narrative has five possible entry points and three endings, stitched together by a central audio feed that updates as you unlock chapters. It’s a love letter to Lisbon — its light, its melancholy, its hidden corners — and could literally not work anywhere else.
Problem
Most narrative podcasts are consumed passively at home or on a commute, divorced from place. Lisbon’s identity is deeply physical — its hills separate classes, its trams carry memory, its azulejos tell stories — but no existing audio project forces you to inhabit that geography as part of the story. Audio guides exist, but they’re dry, non-narrative. This scratches the itch of wanting to live inside a story, not just hear it.
Goals
- Produce 7 high-fidelity audio episodes (8-12 min each) in Portuguese and English
- Partner with 7 local businesses (bookshop, café, fado house, etc.) to host starting points and maps
- Design a low-tech geolocking system using QR codes and a simple mobile web app (no app store submission)
- Create a narrative that branches across 5 entry points, 3 endings, with all paths coherent
- Record authentic fado and field recordings in each location (liberdade de captação locally)
- Distribute 2000 physical maps through tourism offices and partner venues in first season
Non-goals
- Not a gamified scavenger hunt with points or leaderboards
- Not designed for non-Lisbon audiences; no remote listening capability
- Not a walking tour of facts — fiction, not history lesson
- No app store app; lightweight PWA only
- Not a commercial product; free, arts-funded
Tech stack
Field recorder (Zoom H6), binaural microphones (3Dio FS), DAW (Reaper), fado session recording with local musicians, QR code generator, static site hosted on Netlify with geolocation API (browser-based, requesting permission), hand-drawn maps printed via risograph, waterproof paper. All audio mixed in stereo with spatial cues (e.g., left ear = tram direction).
Architecture
The project is structured as a branching narrative tree with 7 nodes (neighborhoods), each node containing an episode file and a set of unlock conditions tied to a listener’s route. When a listener scans a QR at a location, the PWA uses browser geolocation to verify proximity (within 200m) and logs the episode as unlocked. The PWA tracks which paths have been taken and serves the appropriate next episode hint (e.g., “Now head to the miradouro where the singer used to meet her lover”). The central narrative thread is held together by a ‘Memory Broadcast’ — a weekly audio feed that updates the story’s meta-narrative (like a podcast within the podcast) only after at least 3 episodes are unlocked. The architecture is deliberately simple: no server-side persistence, local storage only. The map and QR codes are physical delivery; the digital layer is minimalist.
Risks
- Weather: rainy days kill foot traffic and vibe. Solution: indoor start points with covered paths.
- Device dependency: some visitors lack data roaming. Solution: downloadable map + offline-capable PWA (cache audio).
- Narrative coherence: listeners taking wildly different routes get confused. Solution: central feed that recaps and contextualizes.
- Permission fatigue: venues may drop out. Solution: no exclusivity, always have backups.
- Fado licensing: recording original fado requires clearance. Solution: commission new compositions specifically for the project.
Open questions
- Should the audio be in Portuguese with English subtitles (on phone), or fully bilingual editions? Split tracks?
- How to handle listeners who start at multiple triggers simultaneously — do we lock them out of paths? Or allow all?
- Is there a ‘true’ ending? Or do we embrace the ambiguity of multiple truths?
- Should we sell the maps or give them away? Pricing vs accessibility.
- How to preserve the project after the physical run — archive as a linear podcast?
Why it stayed a plan
I got deep into planning — recorded test binaural audio at Miradouro da Graça, sketched the narrative tree, even talked to two fado houses in Alfama — but then a full-time job + move to Berlin derailed the momentum. The project required being physically in Lisbon for months, and I couldn’t justify the time without a grant. The plan is still on a shelf, waiting for a sabbatical or residency.
Notes
The fado singer at the core is fictional but inspired by Maria Severa (19th century) and Amália Rodrigues. The 1974 recording is a MacGuffin. One key location: the Elevador da Glória — the tram itself carries a chapter. Sound design trick: each episode’s ambient noise changes subtly based on the time of day the listener scans (using browser time), so a morning walk sounds different from dusk.
Milestones
- Field recording & location scouting 2023-05-01
Visit all 7 neighborhoods, record ambient sound, test geolocation accuracy, secure venue partnerships.
- Narrative script & branching logic 2023-07-15
Write all episode scripts, map routes, define unlock conditions and 5 entry points, draft 3 endings.
- Audio production & fado recording 2023-09-30
Record dialogue (voice actors in Lisbon), commission and record 3 original fado pieces, mix all episodes with binaural sound.
- PWA development & QR map design 2023-11-01
Build the progressive web app with geolocation and local storage, design and print risograph maps with QR codes.
- Beta test with local guides 2023-12-01
Recruit 10 locals to walk the routes, test technical reliability, gather feedback on narrative clarity.
- Public launch & promo 2024-01-15
Distribute maps to partner venues, launch with a fado event at a participating bar, social media campaign in English + Portuguese.
Tasks
- Visit 4 miradouros and record binaural ambience at dawn and dusk. · Field recording & location scouting
- Confirm partnerships with Livraria Ler Devagar and A Tasca do Chico. · Field recording & location scouting
- Write episode 1 script (Alfama entry point) with branching choices. · Narrative script & branching logic
- Develop the narrative tree in Twine to visualize paths. · Narrative script & branching logic
- Book fado singer Inês Vaz and schedule studio session. · Audio production & fado recording
- Record voice actors for narrator and three supporting characters. · Audio production & fado recording
- Build PWA prototype with basic geolocation check (navigator.geolocation). · PWA development & QR map design
- Design map layout — include legend, route lines, and QR placements. · PWA development & QR map design
- Print 50 beta maps on waterproof paper. · Beta test with local guides
- Run beta test with 5 people, document tech failures (e.g., geolocation drift). · Beta test with local guides
- Write press release in two languages. · Public launch & promo
- Launch event at A Tasca do Chico — live fado and map distribution. · Public launch & promo
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