Photo taken on Sept. 4, 2019 shows the detail of an accordion displayed at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine. (Photos: Xinhua)

Photo taken on Sept. 4, 2019 shows accordions displayed at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

Photo taken on Sept. 4, 2019 shows an accordion displayed at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

Photo taken on Sept. 4, 2019 shows accordions displayed at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

A pupil poses for photos at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region, Sept. 4, 2019. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

Photo taken on Sept. 4, 2019 shows accordions displayed at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

Photo taken on Sept. 4, 2019 shows detail of an accordion displayed at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

A staff and a pupil play the accordions at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region, Sept. 4, 2019. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

Photo taken on Sept. 4, 2019 shows accordions displayed at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

People watch a staff playing the accordion at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region, Sept. 4, 2019. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

Photo taken on Sept. 4, 2019 shows an accordion displayed at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

A staff plays the accordion at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region, Sept. 4, 2019. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

A staff plays the accordion at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region, Sept. 4, 2019. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

A visitor watches a staff playing the accordion at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region, Sept. 4, 2019. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

Photo taken on Sept. 4, 2019 shows accordions displayed at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

People visit the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region, Sept. 4, 2019. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

Photo taken on Sept. 4, 2019 shows an accordion displayed at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.

A staff and a pupil play the accordions at the Tacheng accordion museum in Tacheng City, northwest China's Xinjiang Uygur Autonomous Region, Sept. 4, 2019. Tacheng accordion museum, covering an area of 500 square meters, displays over 900 accordions from ten countries such as China, Russia, Germany, Italy, Ukraine.