The items for all 3 quests (安塞尔的幸运小提琴邱的琵琶诺可的长笛) can be found within the Ember Court scenario. I don't know if the locations are random, so here are mine:

安塞尔的幸运小提琴 was found at /way 59 48 on top of some crates
邱的琵琶 was found at /way 37 31 on a chair
诺可的长笛 dropped by 吵闹的管理员 at /way 41 29

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诺可的长笛

灰烬王庭
物品等级：1
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"古老商队的旅行之笛。（+刺激）"

掉落于: 吵闹的管理员

掉落几率: 100.00%

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