cu focus piano tuner using a tuning hammer to adjust pins on a grand piano/ chelsea, michigan, usa - 樂器弦 個影片檔及 b 捲影像00:15
cu focus pan piano tuner using a tuning hammer and muting felt to adjust pins on a grand piano/ chelsea, michigan, usa - 樂器弦 個影片檔及 b 捲影像00:32
cu focus pan piano tuner using a tuning hammer to adjust pins on a grand piano/ chelsea, michigan, usa - 樂器弦 個影片檔及 b 捲影像00:30
cu focus piano tuner using a tuning hammer to adjust pins on a grand piano/ chelsea, michigan, usa - 樂器弦 個影片檔及 b 捲影像00:35
cu focus piano tuner using a tuning hammer and muting felt to adjust tuning pins on a grand piano/ chelsea, michigan, usa - 樂器弦 個影片檔及 b 捲影像00:45
cu focus piano tuner using a tuning hammer to adjust pins on a grand piano/ chelsea, michigan, usa - 樂器弦 個影片檔及 b 捲影像00:40
cu focus tu to piano tuning hammer and tuner adjusting pins on a grand piano/ chelsea, michigan, usa - 樂器弦 個影片檔及 b 捲影像00:30
cu focus piano tuner using a tuning hammer to adjust pins on a grand piano/ chelsea, michigan, usa - 樂器弦 個影片檔及 b 捲影像00:39
cu piano tuner using a tuning hammer to adjust pins on a grand piano/ chelsea, michigan, usa - 樂器弦 個影片檔及 b 捲影像00:24
