INIntake
Audio, lyrics, language, region, mood, release stage and consent.
AUAudio Engine
Duration, BPM estimate, key estimate, loudness, intro, hook arrival and energy curve.
LYLyric Engine
Ding phrase, Dong impact, repeated phrase, emotional core, quote line and cinematic imagery.
SCScore Engine
Fit Score, Genre Box Conflict, Substyle Radar and Release Readiness logic.
AIAI Report Engine
Structured JSON generation for lyric analysis, pitch lines, tags and improvement notes.
MDMetadata Engine
Platform-safe genre, public substyle, tags, pitch, descriptions and social copy.
EXExport Engine
Word/PDF reports, JSON, CSV metadata sheet and shareable release identity link.
STStorage Engine
S3-compatible storage with signed URLs and auto-delete policies for audio handling.
PYPayment Engine
Razorpay / UPI tiers, invoices and paid report unlocks.
DBAdmin Dashboard
Review queue, revenue, scan analytics, score trends, common weaknesses and Index management.
HRHuman Review
Official review workflow, badge decision and Ding-Dong Index consideration.
FrontendHostinger / Static HTML + CSS + JS
Tool AppReact / Next.js embedded or separate app.
Backend APINode.js or Python FastAPI on VPS / Render / Railway / AWS.
DatabaseSupabase / PostgreSQL.
Audio BrowserEssentia.js / Meyda-style analysis and Web Audio API.
Audio BackendFFmpeg + custom feature extraction.
LLM LayerOpenAI structured output with JSON schema.
PaymentsRazorpay / UPI.
01Intake EngineAudio, lyrics, title, artist, language, region, mood, release stage, genre, audience and consent.
02File EngineFormat validation, file-size limits, malware scan, signed URL and auto-delete scheduling.
03Audio AnalysisWaveform, duration, loudness, BPM/key, spectral features, percussion density and energy lift.
04Lyric / HookDing phrase, Dong impact, emotional core, tags, pitch sentence and improvement notes.
05Score EngineObjective features, lyric analysis, mood/language, rulebook and confidence flags.
06Metadata EnginePlatform-safe genre, public identity, tags, pitch, description, caption and press line.
07Export EnginePreview, PDF/Word report, JSON, CSV, share link and QR for paid reports.
08Payment EngineHandles all six pricing tiers from free scan to premium collaboration.
09Human ReviewAuto Scan to Potential, Ready, Human Review, Approved and Flagship status.
10Ding-Dong IndexPublic approved cards with artist, substyle, score band, hook line, badge and links.
API Blueprint
POST /api/scans/create, /audio/upload, /audio/analyze, /lyrics/analyze, /score/generate, /report/generate, /payment/create, /review/request, /admin/review/:id. GET /api/scans/:id, /reports/:id, /index/public.
Database Architecture
users, songs, audio_files, audio_features, lyrics_features, scores, reports, payments, human_reviews, dingdong_index and substyles.
Admin Intelligence
Total scans, paid conversion, revenue by tier, top languages, moods, substyles, average scores, weaknesses, review queue, approved Index songs, collaboration leads and failed uploads.