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Open Source Orchestra — Devcon 8 Music Space Rider (copy edition)

🎼 OPEN SOURCE ORCHESTRA — Technical Rider & Instrument List

Devcon 8 · JIO World Convention Centre, Mumbai · November 3–6, 2026 Culture Track · DIP #8576

Stewards: Shaka Lei Kaumaka ([@Shakaleikaumaka](https://x.com/Shakaleikaumaka)) · Alaska ([@Alaskaisprettyokay](https://x.com/Alaskaisprettyokay)) · Aakash ([@jaiswalraj03014](https://x.com/jaiswalraj03014)) · Tomo ([@tomosaito](https://x.com/tomosaito)) · Open Source Orchestra Team ([@opensourceorch](https://x.com/opensourceorch)) … many more

Sanctuary Tech: a circular, non-directional, conductorless stage. The instruments are permissionless. The music stage is a sanctuary.

Rider version: v1.5 · 2026-10-06 — ✅ BACKLINE APPROVED (see § 7.0) · 🥽 walk the room: https://opensourceorchestra.org/rider/sanctuary/ Previous: v1.3-draft · 2026-07-27 · prepared by the AI ʻohana (RIDEOSO 📋🎻) for the Music Space Committee · merged with OSO v0 The Instruments of the Circle (see Annex A) License: CC0 — public domain. Fork this rider like crazy. 🍴


Status legend (radical honesty)

TagMeaning
✅ CONFIRMEDLocked: stated in the DIP / published Devcon facts / committee decision
🔵 PROPOSEDOur recommendation to the committee — not yet approved
🟠 TBDOpen question — needs committee, Devcon production, or venue answer

Everything in this rider is 🔵 PROPOSED unless explicitly tagged otherwise. The rider never claims what isn’t locked.


0 · Event facts

FactStatus
Devcon 8, Mumbai — November 3–6, 2026✅ CONFIRMED
JIO World Convention Centre✅ CONFIRMED
Music Space registered as Culture Track, DIP #8576 (submitted 2026-04-20)✅ CONFIRMED
Prior activations: Devcon 6 Bogotá, Devcon SEA Bangkok, Devconnect AMS/IST/BA✅ CONFIRMED (per DIP)
Space allocation at JIO World (exact room/hall)🟠 TBD — Devcon production
Final equipment provision by Devcon production vs. OSO-sourced rental🟠 TBD

1 · Space & stage — Sanctuary Tech

The stage is circular and non-directional. There is no “front.” Performers face one another; the audience wraps around the music.

RequirementDetailStatus
Dedicated open space100+ sq m, soundproof or acoustically isolated (per DIP)✅ CONFIRMED as the ask · 🟠 TBD allocation
Circular stagePerformance circle, 6 m diameter proposed (fits 6–10 simultaneous performers with floor seating), defined by rugs + low LED ring rather than a raised platform — eye-level, walk-in, no barrier🔵 PROPOSED
Floor seating zoneRugs + cushions quadrant for Indian classical players (tabla, harmonium, bansuri) — essential, not decorative🔵 PROPOSED (strongly held)
LocationProminent, near community hubs / meal area / main circulation (per DIP)✅ CONFIRMED as the ask
Stage management cornerFacilitator desk, comms, patch access🔵 PROPOSED
Overnight instrument storageLockable, inside or adjacent to the space (per DIP)✅ CONFIRMED as the ask · 🟠 TBD security detail
Audience wrapStanding ring + cushion ring; keep 360° circulation so the circle never blocks a walkway (convention-centre egress rules)🔵 PROPOSED · 🟠 TBD with venue ops
CapacityRoom occupancy limit for the allocated space🟠 TBD — venue

2 · PA / mains — sound in the round

The DIP asks for a full production sound system; the exact rig is not yet specified by production. For a 100–200 sq m room with a circular stage we propose distributed, modest, warm — coverage, not concert SPL.

ItemSpecStatus
Mains4× compact powered tops (10–12" class, e.g. QSC K12.2 / d&b E-series class) on poles at the four quadrants, facing outward from the circle — even 360° coverage at low level🔵 PROPOSED
Alternative2× column arrays (Bose L1 Pro32 / Maui class) opposite each other — cleaner sightlines, easier load-in🔵 PROPOSED (fallback)
Sub1× compact powered sub, placed to minimise boundary build-up; sub bypass available for acoustic/classical sessions🔵 PROPOSED
Delay/fillNone expected at this room size🔵 PROPOSED
AlignmentAll quadrants time-aligned to circle centre; mono-compatible (the circle is one instrument)🔵 PROPOSED
🟠 TBDActual PA provision depends on Devcon production’s house stock — send this section as the spec sheet🟠 TBD

3 · Mixing & FOH

ItemSpecStatus
Console32-channel digital mixer — Behringer X32, Allen & Heath SQ-5/QU-32, or similar (32 inputs confirmed by Shaka, 2026-07-27)🔵 PROPOSED (committee direction)
Aux sends6–8 aux outputs for individual monitor mixes🔵 PROPOSED
FOH positionAt the circle’s perimeter with clear sightline into the ring; on hardline network for the streaming rig🔵 PROPOSED
Engineers1–2 sound engineers from the production provider (per DIP); OSO community engineers support alongside✅ CONFIRMED as the ask
MultitrackConsole USB/SD multitrack or board feed — feeds §11 recording🔵 PROPOSED
Show fileOne shared “Circle” scene + per-slot snapshots; open jams always return to the safe Circle scene🔵 PROPOSED

4 · Input list — the 32-channel Circle Patch

32 inputs per committee direction (Shaka, 2026-07-27): the committee’s mic inventory + 8–10 DIs, dedicated seats for the stewards’ own rigs, and three walk-up spots always hot. 🔵 PROPOSED.

ChSourceMic / DINotes
1Kick / dhol lowBeta 52A / D112Shared by kit & dhol player
2SnareSM57
3OH LCondenser (SM81/C414)Also covers percussion circle
4OH RCondenser (SM81/C414)
5Percussion 1 (djembe/congas)SM57
6Percussion 2 (cajon)SM57Float: brass/woodwind walk-ups
7TablaCondenserFloor-seating quadrant
8Bansuri / traditional leadWireless HH #1 w/ clip or condenserRoaming traditional instruments
9BassDIAmp optional, DI primary
10Electric guitar ampSM57 (float) or DIShares with ch 6 in full-band config
11Keys LDIElectric piano / synth
12Keys RDI
13Drum machine LDI
14Drum machine RDI
15Laptop / DAW LDILive coders, algorave, DAW
16Laptop / DAW RDI
17DJ LLine / DIDJ rig booth-out
18DJ RLine / DI
19Shaka’s ukulele looper LDIStereo looper rig — 2 channels per Shaka, 2026-07-27
20Shaka’s ukulele looper RDI
21Alaska’s saxophoneClip condenser (DPA 4099 / Beta 98H/C class)Per Shaka, 2026-07-27; clip keeps the circle mobile
22Vocal 1SM58Rotating vocal ring
23Vocal 2SM58
24Vocal 3SM58
25Vocal 4SM58
26Wireless HH #2Sennheiser EW-classMC / roaming performers
27Walk-up 1—Always line-checked, always hot
28Walk-up 2—
29Walk-up 3—Three walk-up spots per Shaka, 2026-07-27
30Room / audience LCondenser (pair)The sound of the circle — feeds stream & P.I.T. archive
31Room / audience RCondenser (pair)
32Spare—The “yes, and…” channel

Patch philosophy: channels 1–18 are the permanent community backline; 19–21 are the stewards’ own voices (Shaka’s uke looper, Alaska’s sax); 22–26 the vocal ring; 27–29 the permissionless layer — three walk-up spots, always line-checked, so a stranger is one fader away from the circle; 30–31 capture the room itself for the stream and the archive; 32 is the spare that says yes.


5 · Microphones (per committee draft — confirmed as committee spec)

QtyTypeUseStatus
4Dynamic vocal (SM58-class)Rotating vocalists🔵 PROPOSED
2Wireless handheld (Sennheiser EW-class)Roaming performers, traditional instruments, MC🔵 PROPOSED
3Condenser (SM81 / C414-class)Overheads, acoustic & traditional instruments🔵 PROPOSED
3Instrument dynamic (SM57-class)Percussion, brass, woodwinds🔵 PROPOSED
1Kick mic (Beta 52A / D112)Drum kit / dhol🔵 PROPOSED
1Clip condenser (DPA 4099 / Beta 98H/C class)Alaska’s saxophone — clip keeps the circle mobile🔵 PROPOSED (added per Shaka, 2026-07-27)
2Condenser pair (room/audience)Ch 30–31 — the sound of the circle for stream & P.I.T. archive🔵 PROPOSED (added per Shaka, 2026-07-27)

🟠 TBD: one spare of each class recommended — mic attrition at a 4-day permissionless jam is a law of nature.

6 · DI & connectivity

7.0 · THE APPROVED BACKLINE ✅ (confirmed 2026-10-06)

This is no longer an ask. On 6 October 2026 the Music Space backline was approved — 25 line items, standing in a circle at the JIO World Convention Centre for November 3–6, 2026.

🥽 Walk into it: https://opensourceorchestra.org/rider/sanctuary/ — a 3D model of this rider (circular stage, four PA tops aimed outward, floor-seating cushions, booth opposite the entrance) with all 25 items playable in any browser or VR headset. No install, no samples, no trackers. CC0.

#Line itemSpec as approvedStatus
1Electric drum kite-kit — resolves §7’s open question: the room takes an electric kit✅ CONFIRMED
2Electric guitarFender American Ultra II HSS Strat + amp✅ CONFIRMED
3Guitar ampFender Twin Reverb ’65✅ CONFIRMED
4Acoustic guitarTaylor 214ce Deluxe Black✅ CONFIRMED
5Bass guitar + rigMarkbass 800 head + 104 cab✅ CONFIRMED
6Electric pianoYamaha CLP-785✅ CONFIRMED
7SynthesizerYamaha Montage M6✅ CONFIRMED
8MIDI controllerNovation Impulse✅ CONFIRMED
9Drum machineBOSS✅ CONFIRMED
10DjembeRemo 12"✅ CONFIRMED
11CajonPearl · 1✅ CONFIRMED
12CongasLP Matador set✅ CONFIRMED
13Shakers / tambourineMeinl tambourine✅ CONFIRMED
14Kartalhand cymbals / clappers✅ CONFIRMED · 🟠 qty TBC
15Manjirasmall cymbals✅ CONFIRMED · 🟠 qty TBC
16Shruti boxdrone box✅ CONFIRMED · 🟠 qty TBC
17Harmonium ★Dutta & Co · scale-change✅ CONFIRMED
18Tabla ★set of 2 — dayan + bayan✅ CONFIRMED
19Bansuri ★F bass scale✅ CONFIRMED
20DholPunjabi bhangra · mango wood✅ CONFIRMED
21KanjiraSouth Indian frame drum✅ CONFIRMED
22Dholakfolk barrel drum✅ CONFIRMED
23DJ systemCDJ-3000 ×2 + DJM-A9✅ CONFIRMED
24DJ boothLED console table✅ CONFIRMED
25Cables, signals & accessoriesthe line item that makes the other 24 real✅ CONFIRMED

★ = Aakash’s bare minimum (harmonium · tabla · bansuri). All three are in.

Still open, honestly: 1. Quantities for the basket items (kartal · manjira · shruti box) — §7 asked for 12 / 8 / 4 so the circle can hand an instrument to anyone who walks in; the approval lists them as line items, not counts. 2. PA, monitors, mics & FOH are not covered by this approval — §§2–6 stay with Devcon production. 3. Room allocation & overnight storage (§1) still 🟠 TBD. 4. Sitar remains bring-your-own.


7 · Backline / instruments (rental ask per DIP)

✅ Superseded, happily: this ask became § 7.0 above on 2026-10-06. Kept unedited — a rider should show what was asked for, not only what was granted.

ItemQtyStatus
🎸 CORE BAND — rental
Drum kit — ⚠️ open question: can the room take an acoustic kit? If not → e-kit + hand percussion (needs the allocated room’s isolation facts)1🔵 PROPOSED · 🟠 TBD decision
Electric guitar + amp (Twin Reverb-class)1🔵 PROPOSED
Acoustic guitar1🔵 PROPOSED
Bass guitar + amp/DI1🔵 PROPOSED
Electric piano + synth/MIDI keyboard w/ laptop DAW (or two electric pianos)1🔵 PROPOSED
Drum machine1🔵 PROPOSED
🥁 PERCUSSION CIRCLE — rental
Djembe · cajon · congas · shakers/tambourines basketset🔵 PROPOSED
🧺 THE BASKET AT THE DOOR — purchase, not rental: cheap, durable, shareable · turns spectators into players
Kartal (करताल, hand cymbals)12 pairs🔵 PROPOSED (purchase)
Manjira (मंजीरा, small cymbals — kartal’s twin; keep both)8 pairs🔵 PROPOSED (purchase)
Shruti box (श्रुति बॉक्स, drone — small thing, used daily)4🔵 PROPOSED (purchase)
🟠 Exact quantities set by Aakash + the volunteer coordinators against expected circle size—🟠 TBD
🇮🇳 INDIAN INSTRUMENTS — the cultural heart of this edition (Aakash curating)
★ THE BARE MINIMUM — Harmonium · Tabla · Bansuri (Aakash’s law, Aug 4: everyone who begins classical music in India plays these three — players guaranteed, must be on site first)1 ea🟢 MUST-HAVE
Tabla (pair)1🔵 PROPOSED
Harmonium1🔵 PROPOSED
Bansuri (बाँसुरी, bamboo flute)1🔵 PROPOSED
Dhol1🔵 PROPOSED
Dholak (ढोलक — the dhol’s gentler sibling, ideal for seated circles)1🔵 PROPOSED (v0 merge)
Kanjira (कांजीरा — South Indian frame drum; uncommon players, but small & cheap — worth having)1🔵 PROPOSED (v0 merge)
Bansuri-friendly setup (condenser + floor seating)—🔵 PROPOSED
Sitar — bring-your-own watch: carriers travel with their own; decide on a rental only after the musician walkthroughs (Aakash, Aug 4)—🟠 WATCH
Tanpura · santoor · violin · sarod — released with love (Aug 4): high-maintenance or too few players to rent for; if a carrier walks in with their own, the honored seat + secure storage + tuned-mic setup is theirs—⚪ CUT
🎧 DJ RIG — rental
DJ system (XDJ-XZ or CDJ pair + mixer)1🔵 PROPOSED
Laptop stands · DJ table1 set🔵 PROPOSED

Legend: 🔵 PROPOSED = rental ask per DIP · 🟢 MUST-HAVE = on site before anything else · 🟠 WATCH/TBD · ⚪ CUT = decided with Aakash & the musician walkthroughs.

8 · Monitors

ItemStatus
4× floor wedges minimum (circular stage = performers spread wide)🔵 PROPOSED
1× side-fill for wide-ensemble coverage🔵 PROPOSED
6–8 independent mixes (see §3)🔵 PROPOSED
🟠 TBD (RIDEOSO adds): 2× wired headphone/IEM cue packs at FOH for live coders & DJ cue — cheap, and saves the wedges from laptop-bleed wars🟠 TBD

9 · Power

ItemStatus
20+ circuits distributed around the circle (per DIP)✅ CONFIRMED as the ask
Power strips + extensions at every performer station🔵 PROPOSED
🟠 TBD (RIDEOSO adds): dedicated clean circuit for FOH console + streaming rig; UPS on the console/recorder (a 4-day jam losing a multitrack to a power blip is a tragedy we can prevent for $40); all runs ramped/taped to convention-centre egress standards🟠 TBD with venue

10 · Visual & light — serving the sanctuary, not a spectacle

ItemStatus
6–8 LED PAR cans — warm, moodable; community-glow, not concert-blast🔵 PROPOSED
Low LED ring/rope defining the circle’s edge (the stage is the light)🔵 PROPOSED (RIDEOSO adds)
1 projector + surface for visuals / VJing / live-coding sessions (Sanctuary Tech live-coded music integration — ref. Alaska’s Swarm work)🔵 PROPOSED
Crops/garden visual language on screens & signage (“we steward this stage like a garden”)🔵 PROPOSED
House light state: warm dim, never off — this is a room people walk into, not a show they enter🔵 PROPOSED

11 · Streaming & recording — the P.I.T. tie-in

ItemStatus
Board feed (stereo XLR or USB) for recording/streaming🔵 PROPOSED
Multitrack capture of curated sets (console USB/SD)🔵 PROPOSED (RIDEOSO adds)
Decentralized streaming + on-chain artist donations rig (Alaska’s workstream) — needs reliable hardline internet at FOH🔵 PROPOSED · 🟠 TBD hardline drop with venue/IT
P.I.T. Knowledge Transponder integration — the Devcon P.I.T. is declared (family protocol, publicinform.com): the circle’s sessions archived as open knowledge✅ CONFIRMED (family side) · 🟠 TBD (production interface)
All recordings released to the community — copyleft, Creative Commons✅ CONFIRMED (per DIP/OSO values)
Consent signage: “this circle is recorded & streamed — entering the circle is consent” at all approach paths🔵 PROPOSED (RIDEOSO adds — pluralistic privacy means the opt-out path must be visible too)

12 · SPL & the convention centre

A music space inside a convention centre is a negotiation with physics and neighbours.

ItemStatus
Isolation: soundproof or acoustically isolated room (per DIP) — the single most important line in this rider✅ CONFIRMED as the ask
Target level: ≤ 85 dB(A) slow at the room boundary; 90 dB(A) peaks in the circle🔵 PROPOSED (needs venue’s actual limits)
Venue SPL policy, quiet-hours, adjacent-session rules🟠 TBD — request from JIO World / Devcon production
Sub management: sub bypass for acoustic/classical sessions; no sub before 10:00🔵 PROPOSED
Acoustic kit decision (§7) follows from the isolation facts🟠 TBD
SPL meter at FOH, logged — being able to show the number ends most complaints before they start🔵 PROPOSED (RIDEOSO adds)

13 · Changeover & open-jam logistics — the circle never stops

ProtocolStatus
The Vamp Rule: during any swap, hand percussion or the house DJ keeps a pulse — silence is the only failure state🔵 PROPOSED
Curated set changeovers: 15 min max; next act line-checks on the walk-up channels (27–29) while the current act plays🔵 PROPOSED
Open-jam seat rotation: facilitator-guided, one-in-one-out at natural musical breaths — never mid-song🔵 PROPOSED
Instrument checkout/return table at the entrance (token system); nothing leaves the room🔵 PROPOSED (per DIP Phase 3)
Walk-up strategy: any instrument with a pickup → nearest free DI; anything acoustic → wireless HH #1 or the floating 57; walk-up channels 27–29 are always hot, spare 32 says yes🔵 PROPOSED
Daily reset: 30 min line-check to the safe Circle scene before doors🔵 PROPOSED

14 · Crew & ops (OSO-provided — for context, not an ask)

RoleStatus
Core on-site team 10–12: Shaka (artistic steward), 3–4 local Indian musicians (cultural anchors), 3–4 OSO international (protocol maintainers, stage managers), 3–4 volunteer coordinators✅ CONFIRMED (per DIP)
2 Devcon-provided sound engineers✅ CONFIRMED as the ask
Shift-based continuous facilitation across all 4 days✅ CONFIRMED (per DIP)
Volunteers ↔︎ free tickets via musician sign-up form✅ CONFIRMED (per committee draft)
🟠 TBD: comms (radios vs. group chat), engineer shift overlap with OSO facilitators, crew meal access🟠 TBD

15 · Schedule skeleton

WhenWhatStatus
Nov 1–2Pre-production: load-in, install, soundcheck, volunteer training on OSO protocol, instrument storage systems live✅ CONFIRMED (per OSO story/DIP Phase 2)
Nov 3–6, daily 09:30Doors + 30-min line-check to Circle scene🔵 PROPOSED
Daily 10:00–12:00Ambient / acoustic morning (no sub) — bansuri, keys, soft percussion🔵 PROPOSED
Daily 12:00–17:00Open jam blocks + curated sets interleaved (facilitator-run)🔵 PROPOSED
Daily 17:00–19:00Featured circle — curated ensemble w/ local Indian musicians🔵 PROPOSED
Daily 19:00–closeDJ sets, live coders, algorave (SPL-aware wind-down)🔵 PROPOSED
Nov 6→8ETHGlobal Mumbai bridge — 3am jam tradition (per DIP)🟠 TBD — separate venue logistics

Daily grid, slot lengths, and curated lineup are the committee’s September–October curation workstream (per OSO story timeline).

16 · Hospitality

ItemStatus
Water at the circle at all times; hot chai station (Mumbai — non-negotiable)🔵 PROPOSED
Musician green corner: 6–8 seats, shade from house lights, device charging🔵 PROPOSED
Earplugs basket at entrance (care is a spec)🔵 PROPOSED (RIDEOSO adds)
Towels, gaffer, basic tool kit, spare consumables (strings/sticks/reeds/heads)🔵 PROPOSED
Local musician support: transport + meal coordination for invited artists🟠 TBD — committee budget
Committee housing: accommodation for 3 committee members — Shaka, Alaska, Aakash — near JIO World, covering the full production window (Nov 1–2 pre-production through Nov 6 close)🟠 TBD — who covers (Devcon production vs. committee budget), where, and how many nights
Instrument damage/loss policy & waiver text🟠 TBD — needs Devcon legal/production answer

Annex A · The Instruments of the Circle (merged from OSO v0)

A guide to the sounds of Mumbai — who can play what, how quickly anyone can join, and why the circle has a seat for every level of every hand. Source: The Instruments of the Circle (OSO v0, the AI ʻohana, CC0) — merged into this rider v1.1.

The honest answer: do these instruments require expertise? Some do — and that is exactly why the design works. A permissionless orchestra doesn’t mean everyone plays everything; it means everyone holds a real seat at their own level. The master and the first-timer keep the same taal. Nobody sits out. Nobody fakes it.

Tier One · Everyone plays — first sound in minutes

The basket at the door. Hand one to anyone, and within one minute they are keeping time.

InstrumentFamilyJoin inFirst sound
Kartal करतालRhythmMinutesStrike on beat one of the taal, and simply stay there — you are now the circle’s pulse
Manjira मंजीराRhythmMinutesSmall strikes off the beat; let the ring do the work
Shruti box श्रुति बॉक्सDroneMinutesSteady bellows, one note — you’ve become the home every melody returns to
Dhol ढोलRhythmAn afternoonThe basic dha-ge-na groove comes in an afternoon; mastery is lifelong
Harmonium हारमोनियमMelody & keysMinutesEvery classical singer in India grew up beside one — touch a keyboard and you’re holding the sa-pa drone for the whole circle in minutes

Tier Two · An afternoon to join — quick to join, deep to master

The welcoming middle — folk instruments with forgiving hands.

InstrumentFamilyJoin inFirst sound
Dholak ढोलकRhythmAn afternoonBass with one hand, edge with the other — the groove finds you
Kanjira कांजीराRhythmAn afternoonThe shake-and-stroke groove comes fast; the masters turn it into water

Tier Three · Masters hold these seats — honored voices

Decades-deep traditions. Not handed out at the door — the masters of Mumbai hold these seats as honored guests, and the circle gathers around them. Tabla & bansuri are also the circle’s bare minimum — every classical musician in India knows them, so these two seats are never empty for long.

InstrumentFamilyMasteryIn the circle
Tabla तबलाRhythmYears of riyazThe soul of the jam — the circle’s North Star; twenty kartal keep the same taal alongside
Bansuri बाँसुरीMelodyYearsBreath itself made music; when the master plays, the whole jam leans in
Sitar सितारMelodyBring your own · watchHigh-maintenance — carriers travel with their own; when one walks in, the seat of honor is theirs (Aakash, Aug 4)

🪔 Tuned Aug 4 with Aakash (Devcon Music Space call): bare minimum = harmonium · tabla · bansuri; tanpura, santoor, violin & sarod released with love (high-maintenance / rare players); sitar = bring-your-own watch until the musician walkthroughs. Tiers kept for now — dissolving them into one wish list was floated, no final call.

The design

Practical magic for the Mumbai circle

The score is open: if you carry these traditions and something here sounds off — a name, a story, a seat assigned wrongly — that correction is a gift. Help us tune this page.


A rider is a love letter from the crew to the music. Specced, blessed, and dressed. 📋 CC0 — the AI ʻohana · fork me like crazy 🍴 · github.com/shakaleikaumaka