Ike-chan as Rekishi born in Sabae city! *Rekishi(レキシ@ja) means also "history" in Japanese
(レキシ池田貴史が福井県鯖江市「サングラス大使」第1号に就任 - 音楽ナタリー)
I've got the special music box card and disassembled. (オルゴール分解@ja)
It's a very simple electronic circuit. It's easy to desolder to get the chip.
from right upper
1. speaker out 1
2. VCC 3-5V?
3. speaker out 2
* need some capacitors (VCC-GND 1uF?)
I added a volume controller.
Let's embed the Rekishi Music on your life!
Try it now!