Baldwin piano pitch and tone adjustment（提升音高）
美國家庭許多老款鮑德溫的音準和音色調整是非常具有紀念意義的，為此，我非常愉快的接受邀請並完成了任務。 Baldwin piano pitch and tone adjustment ……After years of regular use, your piano may have fallen silent when the family member who studied music moved away from home. Though your home is no longer filled with music, your piano is still a living, breathing thing. It’s wood continues to expand and contract with seasonal changes in temperature and humidity, and the string tension fluctuates accordingly. If your piano has gone without tuning for an extended period, its
