Godot Genre Rhythm

## Reference

> Progressive disclosure: open Official Documentation links only when researching a specific API; load Related Skills when routing to a peer domain — do not preload the whole lattice.

### Official Documentation
- [Sync the gameplay with audio and music](https://docs.godotengine.org/en/stable/tutorials/audio/sync_with_audio.html) — Playback-position helpers (`get_time_since_last_mix`, output latency) that every BPM conductor and judgment window must use.
- [Audio streams](https://docs.godotengine.org/en/stable/tutorials/audio/audio_streams.html) — AudioStreamPlayer roles, pitch_scale for song speed, and how music reaches buses without breaking sync.
- [Audio buses](https://docs.godotengine.org/en/stable/tutorials/audio/audio_buses.html) — Route Music / HitSFX / UI so judgment SFX never fight the track bus.
- [Importing audio samples](https://docs.godotengine.org/en/stable/tutorials/assets_pipeline/importing_audio_samples.html) — WAV vs Ogg/MP3 tradeoffs for charts, hit clicks, and calibration tones.
- [AudioServer](https://docs.godotengine.org/en/stable/classes/class_audioserver.html) — Mix/output latency APIs and bus-effect instances used by conductors and spectrum visuals.
- [AudioStreamPlayer](https://docs.godotengine.org/en/stable/classes/class_audiostreamplayer.html) — Non-positional music/hit player API (`get_playback_position`, `pitch_scale`, pause) for the highway clock.
- [AudioEffectSpectrumAnalyzer](https://docs.godotengine.org/en/stable/classes/class_audioeffectspectrumanalyzer.html) — Engine-side FFT effect for reactive highways without main-thread FFT work.
- [Using InputEvent](https://docs.godotengine.org/en/stable/tutorials/inputs/inputevent.html) — `_input` / action press timing for lane hits instead of polling in `_process`.
- [CanvasItem shaders](https://docs.godotengine.org/en/stable/tutorials/shaders/shader_reference/canvas_item_shader.html) — UV scroll patterns for GPU note highways that avoid moving thousands of sprites on CPU.
- [Tween](https://docs.godotengine.org/en/stable/classes/class_tween.html) — Judgment splash, receptor pulse, and beat-synced scale pops without frame-tied lerps.
- [Background loading](https://docs.godotengine.org/en/stable/tutorials/io/background_loading.html) — Threaded chart/audio preload so dense tracks never stall the first note.

### Related Skills

#### Prerequisites
- [godot-project-foundations](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-project-foundations/SKILL.md) — Audio latency project settings, bus layout names, and input map lane actions must exist before the conductor runs.
- [godot-audio-systems](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-audio-systems/SKILL.md) — Buses, stream players, spectrum instances, and sync-with-audio helpers this genre skill consumes for BPM clocks.
- [godot-input-handling](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-input-handling/SKILL.md) — Action maps, `_input` vs `_unhandled_input`, and event timestamps for lane press/release and anti-spam.
- [godot-gdscript-mastery](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-gdscript-mastery/SKILL.md) — Typed Resources for NoteData/charts, signals for beat/judgment events, and deterministic timing loops.

#### Complements
- [godot-tweening](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-tweening/SKILL.md) — Judgment labels, receptor flashes, and beat pulses should be Tween-driven, not per-frame scale hacks.
- [godot-shaders-basics](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-shaders-basics/SKILL.md) — Shader highways and spectrum-driven uniforms keep dense charts off the CPU.
- [godot-particles](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-particles/SKILL.md) — Hit sparks and combo flourishes via GPUParticles2D without instantiating VFX every Perfect.
- [godot-ui-containers](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-ui-containers/SKILL.md) — Score/combo HUD, calibration sliders, and lane receptor layout as Control trees.
- [godot-save-load-systems](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-save-load-systems/SKILL.md) — Persist A/V offset, scroll speed, and difficulty windows across sessions.
- [godot-autoload-architecture](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-autoload-architecture/SKILL.md) — Conductor / scoring / pool owners are typically Autoloads with a clear boot order.
- [godot-signal-architecture](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-signal-architecture/SKILL.md) — Beat, judgment, combo-break, and chart-finished signals need owner boundaries so UI never owns the clock.

#### Downstream / consumers
- [godot-performance-optimization](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-performance-optimization/SKILL.md) — Escalate when note pools, highway draw calls, or mix callbacks still hitch after pooling and shader scroll.
- [godot-monte-carlo-balancer](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-monte-carlo-balancer/SKILL.md) — Simulate timing-window width, scroll speed, and miss penalties against clear rates before shipping difficulty tiers.

#### Master
- [godot-master](https://github.com/thedivergentai/gd-agentic-skills/blob/main/skills/godot-master/SKILL.md) — Library router and mirrored module entry; open when discovering which Domain Skill owns a cross-cutting rhythm concern.