How to write a method of volume balance?

to implement a method of volume balancing, enter an address of mp3, complete such a method in a functional language, and then call it with node. What language has a response method?

Apr.20,2022
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3098b-2bd30.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3098b-2bd30.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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