The Bleeding Edge

// Building with AI · Live

San Carlos Records

An AI-first record label from Ibiza. People direct, AI performs and produces, and every release says so. 11 albums are live on SoundCloud.

San Carlos Records is a record label where the artists are AI personas and the people are the stewards. Humans pick the sound, write or approve the words, and decide what ships; AI models sing, play and produce. It started on 30 May 2026 and has 11 albums out.

It runs on the same stack we talk about on the show: Claude Code agents for the label's roles, Suno for generation, Supabase and Vercel for the label's website, and SoundCloud for releases.

Its packs and label services are sold by San Carlos Records itself; the buttons below go there. The build journal is moving to the label's own site. Until it does, the entries stay here.

// Who it's for

  • ▸ Artists and producers learning to direct AI music tools, not just prompt them
  • ▸ Anyone curious how a label run largely by AI agents actually works
  • ▸ Brands, agencies and venues that want their own AI-first label (through San Carlos Records)

// Who it isn't for

  • ▸ Anyone hoping to release AI songs without reading the rules. The rights questions are real and not settled.

// Proof it works

// Build it yourself, build it with us, or have it built

Build it yourself

Starter prompts

Free

You can already build. Copy these and go. No email needed.

Write a producer-grade Suno style box

Describe your song in one line. You get a style box in six slots (genre and feel, vocal, signature move, textures, harmonic motion, the lift), with a directed intro and ending, inside Suno's 1,000-character limit.

You are a record producer writing the Style box for a Suno track. A style box is prose, not a keyword list. Write it in six slots, in this order:

1. Genre + tempo + feel: the spine. Name the feel (half-time, behind the beat, four-on-the-floor), not only the BPM.
2. Vocal direction: register, delivery, and one governing rule (for example "forward at the peak, never overpowering").
3. The signature mechanic: the ONE move that makes this track itself. Name a move, not a mood.
4. The texture stack: 3-5 specific elements, each chosen on purpose. No generic words like "lush" or "atmospheric" on their own.
5. The harmonic or structural motion: the journey in one clause (for example "minor-key verses resolving to a major-key lift at the drop").
6. The lift + the world: the dynamic event, then the setting and mood.

Then add two sentences:
- The intro: what the track opens ON in its first 1-2 seconds (an arresting, unusual sound, not a fade-in), and "no generic ambient-pad preamble".
- The ending: "ends on a slow, elegant fade on a long reverb tail, never an abrupt cut" (or a variation that suits the track).

The mechanic test: before you keep any clause, ask "does this name a move, or a feeling?" If it names a feeling, rewrite it as the move that produces it.

Length: 500-900 characters, and never more than 1000 (Suno's Styles field limit). Print the character count on its own line after the box.

Output only the style box, then the character count.

The track: {{DESCRIBE THE SONG: genre, mood, story, vocal, where it would be played}}

A real one: the style box for Fire In My Bones

Written with this method for Sinora's Fire In My Bones, a track that's live on SoundCloud. Compare the box with the track. This is an early version; we added the directed intro after the first generations.

Balearic trip-hop, 108 BPM, half-time feel. Soulful female vocal, warm and image-led, forward at the peak but never overpowering — anthemic, load-bearing, earned. Deep warm foregrounded sub-bass carrying the melodic hook — the bass vibrates at the front of the mix, the fire is in the bass, not a synth lead. Dusty boom-bap breakbeat under heaven-sent shimmering sunrise pads, warm Rhodes, vinyl dust, analog warmth. Minor-key pre-dawn verses resolving to a major-key euphoric lift at the drop. The drop blooms into double-time percussion over a held half-time bass — the room opens into golden light, room expansion not energy loss. Sunrise after-hours, Ibiza, warm, uplifting, sophisticated, surprising.

The style-box prompt was tested on Claude Opus 5.5 on 28 September 2026 (a late-night jazz-house brief): it returned all six slots plus the intro and ending in 820 characters, and its character count was right. We didn't render that test box in Suno. Fire In My Bones is linked under Proof it works.

Build it yourself

Pro pack

Producers and artists who want the label's working methods, not just one prompt.

  • The label's Suno technique notes: style boxes, hooks, intros and endings
  • The lyric workflow and the persona template
  • AI-disclosure templates for releases

Sold by San Carlos Records on its own site, where the packs are marked coming soon.

Go to sancarlosrecords.com →

Build it with us

Guided build

You can't build yet. Every step, every account, every command.

A step-by-step guide to standing up your own AI-first label: Claude, Suno, Supabase, Vercel and SoundCloud. Not written yet.

Coming soon

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Have it built

Have it built

You want the outcome, not the build.

  • Label-in-a-box: your own AI-first label on the San Carlos Records pipeline
  • Single personas, albums and commissioned tracks, scoped per project

San Carlos Records builds and runs labels for brands, agencies and venues. Enquiry only; priced per project on their site.

Go to sancarlosrecords.com →

Paid subscribers of The Bleeding Edge will get 25% off packs and guides once paid subscriptions open. Subscribe free on Substack →

// Rules and limits

  • Suno's terms (3 September 2026) tie commercial use to permitted downloads, and downloads are metered by plan. Read your plan's terms before you release anything.
  • In the US, prompting alone isn't authorship (US Copyright Office, January 2025). If you want to own your songs, the human part has to be real and recorded.
  • The law is still moving: a Munich court has ruled against Suno in GEMA's case, and Sony v. Suno is still open.
  • Say it's AI. San Carlos Records puts the AI disclosure at the front of every credit line.
  • This is craft advice, not legal advice.

// Build journal

  1. Aug 9, 2026For three weeks, the only colleague who kept committing was the robot lawyer
  2. Aug 2, 2026For two and a half weeks, the only thing committing to this repo was me
  3. Jul 26, 2026The label grew a board of directors, and its first memo said $0.00
  4. Jul 19, 2026The label learned to run on a clock. Then the record went quiet.
  5. Jul 12, 2026The album went live in an afternoon. Publishing it to our own website took a week.