After Youdao Dictionary is shut down, its online functions, such as translation and word search, can no longer be used. However, if the Youdao Dictionary Pen has a built-in music playback function and the music files have been downloaded to the device, you can still listen to the music by opening the local music player. Specifically, you can follow the steps below:

1. Find the music player app or function on Youdao Dictionary Pen.

2. Open the music player and view the list of local music files.

3. Select the music file you want to listen to, and then start playing.

Please note that the above steps may vary depending on the specific model and function of the Youdao Dictionary Pen. It is recommended to refer to the relevant user manual or contact Youdao Dictionary official customer service for accurate and detailed operating instructions.