鋼琴樓梯 Jack Chan 12 years ago Share this: RelatedLBSM piano touch researchDecember 19, 2012In "愛琴軒動態資訊"被暴力對待的鋼琴May 16, 2013In "愛琴軒動態資訊"愛琴軒 TECH TALK – 鋼琴技師講座July 21, 2013In "愛琴軒動態資訊"
