Lyria 3 License & Rights — parksy-audio

Version: 1.0

Date: 2026-02-21

Purpose: Document the legal framework for Gemini Lyria 3 AI-generated audio

1. Gemini Lyria 3 Overview

**Release:** 2026-02-18

**Generator:** Google Gemini (Lyria 3 model)

**Output:** Up to 30 seconds of AI-generated music

**Watermark:** SynthID (inaudible digital watermark embedded by Google)

**Platform:** music.google.com / Gemini app

2. Rights & Licensing

2.1 Google's Terms (as of 2026-02-18)

Generated audio is **royalty-free** for the user

**YouTube monetization compatible** — no Content ID claims from Google

SynthID watermark is embedded but does not restrict usage

User retains rights to use generated output in their content

2.2 Our Usage

YouTube Shorts BGM	Yes	Royalty-free, monetization OK
Use Case	Allowed	Notes
YouTube long-form BGM	Yes	As background layer only
CM brand jingles	Yes	For our channels only
Webtoon BGM	Yes	Emotion-based scene BGM
Commercial redistribution	Review	Check latest Google ToS
Claiming as human performance	No	Must disclose AI generation

3. SynthID Watermark

What it is

Inaudible digital watermark embedded in all Lyria 3 outputs

Identifies the audio as AI-generated

Survives common transformations (compression, format conversion, minor edits)

Our stance

We do **not** attempt to remove or circumvent SynthID

We **acknowledge** AI generation in all published content

SynthID detection tools may identify our audio as AI-generated — this is expected

4. Copyright Notice Format

For AI-generated audio (Lyria 3)

Music: AI-generated using Google Gemini Lyria 3
SynthID watermarked. Royalty-free.
No human performance copyright claimed.
Audio processing by PARKSY Audio pipeline.

YouTube Description Template

🎵 Music generated with Google Gemini Lyria 3 (AI)
♫ Royalty-free — no copyright claimed on the musical composition
♫ SynthID watermarked (AI-generated audio identifier)
♫ Post-processing: loudness normalization, EQ, fade — PARKSY Audio pipeline
♫ Free to use with attribution

#AIMusic #Lyria3 #RoyaltyFree #PARKSY

5. Distinction from PD Classical Pipeline

Source	Public Domain compositions	AI generation
Attribute	PD Classical (MIDI)	Lyria 3 (AI)
Copyright basis	Composer death 70+ years	Royalty-free ToS
Processing	MIDI → FluidSynth → WAV	Gemini → M4A/WAV → FFmpeg
Registry	MIDI-SOURCES.md	LYRIA3-SOURCES.md
Output folder	releases/bgm/	lyria3/
YouTube playlist	Parksy Piano Minimal	Parksy Shorts / CM
SynthID	N/A	Embedded
Copyright claim	"Public Domain composition"	"AI-generated, royalty-free"

6. Risk Assessment

Google changes ToS	Low	Monitor Google AI ToS updates
Risk	Level	Mitigation
Content ID false match	Low	SynthID prevents Google claims; third-party claims unlikely
AI disclosure requirements	Medium	Always disclose AI generation proactively
SynthID removal attempt	N/A	We never attempt removal
Mixing with PD pipeline	Prevented	Strict folder separation + registry rules

7. References

Google Gemini Lyria 3 announcement (2026-02-18)

Google AI-generated content policies

YouTube AI-generated content disclosure guidelines

SynthID documentation (Google DeepMind)

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