The field manual
A grammar Suno responds to
Suno's whole interface is two text boxes — styles and lyrics — and most prompts treat them as a wish. The grammar treats them as a score. This page is the method in the open: how the section lines are built, why the Styles box is a priority list, and the three rules that save more renders than any other habit. It's the format every Kithara kit is written in.
The seven-field section line
Every section of a song gets one piped line in the lyrics box:
[Section | Key | Harmony | Instrumentation | Arrangement | Groove | Mood]
A worked example, written fresh for this page:
[Chorus | E minor | yearning minor lift, brightening at the turn | felt piano, warm strings, soft kick | the hook lands and the strings swell under it | slow heartbeat pulse | hopeful]
Structure in, structure out: when every section declares its own harmony feeling, its own instruments, and its own energy, Suno stops averaging the whole song into one texture. Fields take nouns and short phrases — no verbs, no sentences.
What each field decides
Section
The block's name — and the one place Suno honours a key change. [Final Chorus, lift up a whole step | …] belongs here, not in the harmony field.
Key
The tonal home, stated plainly. It anchors the line even though the harmony field does the expressive work.
Harmony
The feeling of the changes, in plain English — rich jazzy ninth float, warm major with a deceptive cadence. Suno ignores chord letters; it responds to described feeling.
Instrumentation
Who is in the room for this section — and by omission, who is not. The fastest lever for making sections actually differ.
Arrangement
What happens: the hook lands, brass answers, the band pulls back to half. The section's story in one clause.
Groove
The rhythmic pocket — funky 16th groove, rubato, no drums. Naming the absence of drums is as strong as naming a beat.
Mood
One word of emotional register — noble, bittersweet, euphoric. The cheapest field, and the one that keeps a long song developing.
The Styles box is a priority list, not a description
Suno weights the styles box by position, with a sharp falloff — the first several comma-separated items carry almost all the influence, and anything deep in the tail is near-decorative. So a kit's Styles line front-loads the seven that matter: genre, mood, lead instrument, bass, the production signature, tempo, atmosphere — with exactly one plain-English harmony phrase, and the lower-weight detail parked after an em-dash where it can help but not steer.
Two corollaries fall out of the falloff. Don't stack harmony tags — one clear phrase steers better than three competing ones. And put the thing you're fighting for first: if the slap bass keeps getting buried, prominent melodic slap bass up front belongs in the opening items, not the tail.
Three rules that save renders
Harmony in plain English. Chord symbols are notation, and Suno doesn't read notation — it reads described feeling. Bright descending cascade, ii-V-I motion works because the words carry the motion; Dm7–G7–Cmaj7 mostly doesn't.
Modulation lives in the Section field. A key lift declared in the section header — [Bridge, modulate to a bright key then pivot home | …] — is honoured. The same instruction anywhere else is scenery.
Negatives are load-bearing. What a sound excludes defines it as much as what it includes. A concerto kit that never says no choir, no vocal pads isn't a concerto kit for long.
Where the grammar stops
A format doesn't make taste. The grammar keeps Suno pointed where you aimed; deciding where to aim — which harmony language belongs to city pop, what a concerto's negatives are, when a chorus should be scored differently from its verse — is the part that took hundreds of sessions to learn, and it lives in the kits. Kithara's studio drafts new kits and variations inside this grammar with a validator between the AI and your document, which is the difference between a format and a working method.
Grammar questions
Do I need music theory to use this?
No — that's rather the point. The harmony field wants described feeling in plain English, which is exactly what you can write without theory. The kits supply the vocabulary; you decide the intent.
Why not just write a normal prose prompt?
Prose gives Suno one averaged instruction for the whole song, so every section comes out the same texture. Piped section lines give each block its own harmony, instruments, and energy — the difference between a song that develops and a loop that lasts four minutes.
Does the grammar work outside Suno?
The structure is mostly platform-agnostic — sectioned scores and front-loaded style lists are just clear writing. But everything on this page was tuned on real Suno sessions, and Kithara is built for Suno's two boxes and its Cover feature. Elsewhere, your mileage is honestly unmeasured.
Can I write kits by hand in this format?
Yes — the first seven Kithara kits were hand-written exactly this way, and the format is yours to use. The studio exists because maintaining a shelf of them by hand stopped scaling: drafting inside the grammar, validating every note, and keeping the documents versioned is what you'd sign up for.
Write scores, not wishes
An invite opens three starter kits written in this grammar — read them in full, then make your own.
Request an invite