中国香港采购需求：豪华音乐机芯，弹簧驱动微型音乐机芯，标准18音符音乐机芯，标准18音符音乐机芯

I'm looking for the wind-up musical movement specifically designed for ballerina music boxes from your factory. Could you please provide me with a comprehensive list of the available melodies that you offer? It's important for me to understand the variety you have, as it will influence my purchasing decisions. Additionally, I would appreciate it if you could let me know the minimum order quantity (MOQ) for each melody. This information is crucial for planning our orders and ensuring we meet our production needs. Looking forward to your prompt response!