# Phase 5: Live Show Execution - Discussion Log

> **Audit trail only.** Do not use as input to planning, research, or execution agents.
> Decisions are captured in CONTEXT.md — this log preserves the alternatives considered.

**Date:** 2026-04-07
**Phase:** 05-live-show-execution
**Areas discussed:** Cue Scheduler Location, Live Preview Panel

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## Cue Scheduler Location

| Option | Description | Selected |
|--------|-------------|----------|
| Server decides | Extend ws.py tick handler — server scans cues and calls UDPSender.send() | ✓ |
| Browser decides | Browser tracks blocks, sends fire_cue messages to server as relay | |

**User's choice:** Server decides

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### Timing Window

| Option | Description | Selected |
|--------|-------------|----------|
| 60ms look-ahead window | Fire if block starts within 60ms of current tick position — never miss a cue | ✓ |
| Exact match + tolerance | ±20ms window — more precise but may miss cues between ticks | |

**User's choice:** 60ms look-ahead window

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## Live Preview Panel

### What to show

| Option | Description | Selected |
|--------|-------------|----------|
| Animation color + type per device | Solid strip per device showing active animation and color | ✓ |
| Per-LED simulation | Actual animated frame-by-frame rendering (complex, needs backend or JS reimplement) | |

**User's choice:** Animation color + type per device

---

### Panel placement

| Option | Description | Selected |
|--------|-------------|----------|
| Below timeline, above transport bar | Horizontal strip always visible during playback | ✓ |
| Sidebar panel | Right sidebar alongside devices — less vertical space | |

**User's choice:** Below timeline, above transport bar

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## Claude's Discretion

- Keyboard shortcuts (UI-03) — standard DAW conventions (Space, arrows, Ctrl+Z/S)
- Show save/load UX — auto-save already exists via CRUD; Ctrl+S as explicit save shortcut
- Preview panel height — compact, 40-60px, one row per device

## Deferred Ideas

- Per-LED frame simulation — v2
- Standalone fullscreen preview mode — out of scope
- Keyboard shortcut customization UI — out of scope for v1