已对照游戏内数据、官方开发直播与补丁说明核验，
已针对 Preludes 15 人工核实。
crafting · Uncommon
中阶和弦石，首个需灯石等级。Tuvalkane Refine 提炼：消耗 Whispering Chordstone + Glow Lampyrite。用于升阶 Melodious Chordstone。
Farm Glow Lampyrite via Nightfold Noble weapon dismantle (P15 primary), then refine Whispering → Lilting at Tuvalkane Refine tab. Supplement with siege loops and Cogah Agari.
中阶和弦石，首个需灯石等级。Tuvalkane Refine 提炼：消耗 Whispering Chordstone + Glow Lampyrite。用于升阶 Melodious Chordstone。
Farm Glow Lampyrite via Nightfold Noble weapon dismantle (P15 primary), then refine Whispering → Lilting at Tuvalkane Refine tab. Supplement with siege loops and Cogah Agari.
Tuvalkane Refine tab — recipe: Whispering Chordstone + Glow Lampyrite
Glow Lampyrite: Nightfold dismantle — Noble weapons), siege Turret Jotar, Cogah Agari, Neath'un Sap Pod
Pre-craft Whispering Chordstone via Cast tab before refine
同类别材料横向对比，便于判断稀有度与主要掉落来源。
| 物品 | 稀有度 | 主要来源 | 刷取路线 |
|---|---|---|---|
| 轻快和弦石当前 | Uncommon | Tuvalkane Refine tab — refine… | 有 |
| 琥珀灯石 | Rare | Dismantle: Sovereign weapon → Glow +… | 有 |
| 灵光灯石 | Rare | Dismantle: Legendary weapon → Glow +… | 有 |
| 灯石 | Rare | Dismantle: Noble weapon → Glow Lampyrite | 有 |
| 悠扬和弦石 | Rare | Tuvalkane Refine tab — refine Lilting… | 有 |
| 狂想和弦石 | Rare | Tuvalkane Refine tab — refine… | 有 |
| 和弦石 | Uncommon | Craft: Tuvalkane | 有 |
| 微光灯石 | Uncommon | Dismantle: Noble weapon → Glow Lampyrite | 有 |
| 呢喃和弦石 | Uncommon | Tuvalkane Cast tab — up-cast from… | 有 |
| 寂静和弦石 | Common | Tuvalkane Cast tab — craft with… | 有 |
| 混沌和弦石 | Epic | Historical one-time Preludes 15… | 有 |