**Metal** — LoRA · ACE-Step 1.5 Turbo (2B)
LoRA for **AceStep v1.5 Turbo**.
Trigger-word adapter. Lead your prompt with the trigger token.
**How to use**
- Trigger / lead tag: `roti-m3t4al`
- Recommended strength: **1.0** (tested 0.3–1.5)
- Steps 8 · shift 3.0 · guidance 7.0 · 48000 Hz
**Example prompts**
- `heavy metal track, twin guitar harmonies, double bass drums, soaring clean vocals` · 150 bpm · E minor
- `death metal, downtuned palm-muted riffs, blast beats, growled vocals` · 180 bpm · D minor
- `progressive metal, complex polyrhythms, soaring clean vocals, technical guitar work` · 140 bpm · B minor
**Adapter**
- LoRA rank 64 · alpha 128 · dropout 0.1 · 4 target modules
- Eval (MFCC cosine): best scale 1.0, +0.036 vs baseline — *strong_positive*
Download includes a required `metal-acestep1.5-v1.metadata.json` config sidecar with full structured metadata.