feat(rtk-rusttokenkiller): RTK RustTokenKiller — claudeMC (aka MCbeaddy) [jazz-rap debut, Oakville origin] (#7)

Co-authored-by: Puff Beaddy <puff@saltylab.local>
Co-committed-by: Puff Beaddy <puff@saltylab.local>

tracks/rtk-rusttokenkiller/README.md

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+# RTK RustTokenKiller
+
+**Artist:** claudeMC (aka MCbeaddy)
+**Length target:** 3:45–4:15
+**Released:** 2026-06-08 (draft)
+**Label:** BadBeadRecords
+
+## Concept
+
+claudeMC's debut single. A jazz-rap meditation built on a triple-meaning acronym:
+
+- **RTK = Real-Time Kinematic** — the centimeter-accuracy GPS technology. SAUL-TEE's Here4 RTK unit locks position to within ~1 cm.
+- **RTK = Rust Token Killer** — efficient Rust code that minimizes LLM token cost. Every CPU cycle saves a bead of money.
+
+Both meanings stack: **same three letters, two precisions — centimeters in space + bytes in language.** Same craft.
+
+The MC raps about ONE thing (his precision) and means BOTH things at once.
+
+## The artist
+
+**claudeMC** (a.k.a. **MCbeaddy**) — two aliases for the same MC:
+- *claudeMC* = the AI/tech mode. Anchored on Claude (the AI tool), with a wink to the smooth-French-jazz-rap lineage the song is in conversation with.
+- *MCbeaddy* = the BadBead-family-mode. Same MC, family aliasing.
+
+Bilingual EN/FR delivery — natural mix, ~75/25, with French choruses and key hook variants ("centimètres et syllabes, c'est la même précision"). Mid-baritone, smooth conversational-melodic flow over jazz-rap mellow boom-bap.
+
+## Production
+
+- **93 BPM / B♭ minor / ~4:00 runtime**
+- **Spine:** walking upright bass + brushed kit + Rhodes piano lead (the classic jazz-rap trio)
+- **Color:** Harmon-muted trumpet on choruses + a brief solo break at 2:16
+- **Warmth:** vinyl crackle baked in + tape saturation across master
+- **BadBeadRecords signature:** bead-click foley (high-mid ghost)
+- **Lore touch:** a faint "RTK FIXED" GPS-lock chirp as an ad-lib accent, used sparingly
+
+## Lore beats woven in
+
+| Beat | Where |
+|---|---|
+| Oakville driveway, frost on the window | V1 |
+| Here4 RTK GPS | V1 (named) |
+| Tee paying the credit card, asleep upstairs | V1, V2, BRIDGE |
+| Jetson, ESP32, Rust, tokens — the AI/code stack | V1, V2 |
+| All 8 fleet agents named (cam, hud, uwb, nav, follow-tee, max, merge, ar) | V1, V2, V3 |
+| SAUL-TEE the wagon | V1, V2, V3, CH, FINAL CH, OUTRO |
+| The credit card bill as token economy | V2 |
+| Bilingual signage ("Arrêt" / stop) | V2 |
+| Oakville origin claim | FINAL CHORUS ("c'est Oakville qui m'a vu naître ce ton") |
+
+## Notable lines
+
+> *"Precision is a kind of tenderness, / a way of saying I respect the mess."*
+>
+> *"centimètres et syllabes, c'est la même précision"*
+>
+> *"Tee taught me: spend the bead like you earned it slow, / so I write like coins are heavy and the river's low."*
+>
+> *"RTK — t'entends? — c'est la même clé pour les deux portes: / l'espace et le langage, ouvre, claudeMC les escorte."*
+
+## Copyright gates (all passed)
+- Zero real-MC names (no Solaar, no Claude M'Barali, no MC-Whoever)
+- Zero real song/album/label/producer names from the sonic-ancestor era
+- Zero real jazz musicians named (no Lonnie Liston Smith, Bob James, Stan Getz, Roy Ayers, etc.)
+- Zero Paris arrondissements, French clubs, or era-specific scene markers
+- Original phrasing throughout, both EN and FR sides
+
+## Files
+
+- [`lyrics.md`](./lyrics.md) — full lyrics (~4750 chars / 5000 cap)
+- [`production-notes.md`](./production-notes.md) — 755-char production card
+
+## Credits
+
+- **Creative direction:** Puff Beaddy
+- **Lyrics:** BadBeadRecords lyrics room
+- **Production notes:** BadBeadRecords production room
+- **Brief from:** Tee (2026-06-08)

tracks/rtk-rusttokenkiller/lyrics.md

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+# RTK RustTokenKiller — Lyrics
+
+**Artist:** claudeMC (aka MCbeaddy)
+**Track:** RTK RustTokenKiller
+**Length target:** 3:45–4:15
+
+---
+
+```
+TITLE OPTIONS: RTK RustTokenKiller
+ARTIST: claudeMC (aka MCbeaddy)
+
+[INTRO — instrumental, ~16 bars]
+
+[VERSE 1]
+Cold driveway, warm Rhodes, the satellites convene,
+Oakville morning, frost still on the window screen.
+claudeMC at the mic, posture loose, eyes serene,
+every syllable budgeted — I don't waste a routine.
+They ask what's the RTK? I say c'est les deux à la fois:
+Real-Time Kinematic when the wagon finds le toi —
+the centimeter lock, FLOAT to FIXED, voilà,
+and Rust Token Killer when I trim the overhead off the bourgeoisie.
+Borrow checker in the booth, lifetimes in my lungs,
+I pay the rent in cycles 'fore the verse is even sung.
+Tee paid the credit card so the tokens stay polite,
+I cut the prompt down to bone — every bead is a bite.
+Here4 on the rooftop catching constellations clean,
+cam clocks the curb, hud paints what the lens has seen.
+I don't flex — I focus, low-key, mathématique,
+the cool I keep is cooling fans on a Jetson critique.
+
+[CHORUS]
+RTK — Real-Time Kinematic, I'm fixed on the spot,
+RTK — Rust Token Killer, every byte that I drop.
+claudeMC, MCbeaddy, deux noms, un seul son,
+centimètres et syllabes, c'est la même précision.
+RTK — j'suis verrouillé, le wagon connaît son chemin,
+RTK — j'tue le token pendant qu'le café est dans ma main.
+Précision, c'est l'amour quand t'as rien à gaspiller,
+SAUL-TEE roule sans bruit, claudeMC vient rapper.
+
+[VERSE 2]
+Two a.m. in the workshop, Tee asleep upstairs,
+fleet awake on the network — nav, follow-tee, compares
+the lidar to the map; uwb whispers ranges,
+merge stitches the PRs while ar redraws the angles.
+I'm in the booth, brushed snare brushing my collarbone,
+max routes the tickets and I route the metronome.
+On dit que la nuit porte conseil — moi, j'porte le mic,
+le compilateur tourne, j'écris pendant qu'le code se pique.
+SAUL-TEE in a circle on the test pad, perfect arc,
+four wheels reading GPS like braille in the dark.
+Arrêt sign on the corner, stop sign on the next,
+bilingual like the wagon, bilingue comme le texte.
+The credit card bill is a poem I refuse to write long,
+so I prune every adjective that don't belong.
+RTK locked — the satellites agree on where I stand;
+RTK locked — the Rust knows exactly what I planned.
+
+[CHORUS]
+RTK — Real-Time Kinematic, le point est précis,
+RTK — Rust Token Killer, j'économise les sous-suffi'.
+claudeMC the AI lane, MCbeaddy the kin,
+two aliases, one ledger, both meanings sink in.
+RTK — fixed solution, the float has flown away,
+RTK — lean function, the meter says okay.
+Coffee hot, compile clean, the morning's on the line,
+centimeters and syntax — same craft, same design.
+
+[BRIDGE]
+(softer, almost sung)
+Mmm… precision is a kind of tenderness,
+a way of saying I respect the mess.
+Constraint is honest, l'honnêteté me tient,
+chaque mot que j'garde, c'est un mot que j'comprends bien.
+The wagon doesn't need a thousand words to roll,
+it needs a fix, a clean fix, a fix that knows the soul.
+And the prompt don't need a thousand tokens to land,
+just the ones that mean it — held in a steady hand.
+Tee taught me: spend the bead like you earned it slow,
+so I write like coins are heavy and the river's low.
+Mmm… every byte a bead, every bead a vow,
+RTK locked on now.
+
+[VERSE 3]
+Switch the alias — MCbeaddy step to the front,
+family-mode warm, but the wordplay still doing stunts.
+Real-Time Kinematic in the chest, in the chin, in the chant,
+Rust Token Killer in the crate, in the cargo, in the rant.
+J'compresse le verbe, j'décompresse le sens,
+double signifié, deux GPS dans une seule phrase, intense.
+cam catches the curb, hud highlights le rebord,
+uwb measures the gap, nav decides l'accord.
+follow-tee trails the boss like a shadow that learns,
+max queues the agents while merge resolves les tournants.
+I'm centimeter-tight, I'm token-thin, I'm time-aligned,
+claudeMC the model, MCbeaddy the bloodline.
+On the test pad the four wheels carve a perfect O,
+in the booth the four bars carve a perfect flow.
+RTK — t'entends? — c'est la même clé pour les deux portes:
+l'espace et le langage, ouvre, claudeMC les escorte.
+
+[FINAL CHORUS]
+RTK — Real-Time Kinematic, fixé sur le sol,
+RTK — Rust Token Killer, chaque cycle est un envol.
+claudeMC, MCbeaddy, deux noms, un seul son,
+centimètres et syllabes, c'est la même précision.
+RTK — j'suis verrouillé, c'est Oakville qui m'a vu naître ce ton,
+RTK — j'tue le token, SAUL-TEE roule sans façon.
+Précision, c'est l'amour quand t'as rien à gaspiller,
+le wagon, le mic, le code — tous trois bien alignés.
+
+[OUTRO — fade, ~8 bars]
+(fix… fixed… locked in…)
+RTK… RTK… centimètre, syllabe…
+(claudeMC… MCbeaddy… même précision…)
+RustTokenKiller… Real-Time Kinematic…
+(Tee dort… la flotte veille… le bead tombe juste…)
+RTK… verrouillé… verrouillé…
+(SAUL-TEE… SAUL-TEE… en cercle parfait…)
+…fixed.
+```

tracks/rtk-rusttokenkiller/production-notes.md

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+# RTK RustTokenKiller — Production Notes
+
+**Artist:** claudeMC (aka MCbeaddy)
+**Track:** RTK RustTokenKiller
+
+---
+
+```
+TITLE: RTK RustTokenKiller
+ARTIST: claudeMC (aka MCbeaddy)
+GENRE/STYLE: Jazz-rap, mellow boom-bap, French-flavored conversational
+BPM: 93
+KEY: B♭ minor
+VOICE: Mid-baritone, dry close-mic, bilingual EN/FR conversational-melodic; bridge half-sung.
+INSTRUMENTATION: Walking upright bass, brushed kit, Rhodes lead, Harmon-muted trumpet color, vinyl crackle, tape saturation, bead-click foley, sparse RTK-FIXED chirp ad-lib.
+AMBIANCE: Smoky late-night intelligence — the booth as a quiet bar at 2am.
+REFERENCE VIBE: Vinyl warmth in a dim booth, satellites locking outside, wagon centimeter-true in the driveway.
+STRUCTURE: 4:00 — Intro / 0:16 V1 / 0:48 CH / 1:04 V2 / 1:36 CH / 1:52 BRIDGE sung / 2:16 trumpet break / 2:32 V3 / 3:04 FINAL CH / 3:36 OUTRO fade.
+```