sudo apt-get install python-mutagen

然后使用mid3iconv工具

Usage: mid3iconv [OPTION] [FILE]...

Mutagen-based replacement the id3iconv utility, which converts ID3 tags from

legacy encodings to Unicode and stores them using the ID3v2 format.

Options:

--version show program's version number and exit

-h, --help show this help message and exit

-e ENCODING, --encoding=ENCODING

Specify original tag encoding (default is UTF-8)

-p, --dry-run Do not actually modify files

--force-v1 Use an ID3v1 tag even if an ID3v2 tag is present

--remove-v1 Remove v1 tag after processing the files

-q, --quiet Only output errors

-d, --debug Output updated tags

mid3iconv -e GBK *.mp3

将MP3的TAG编码转换成GBK编码，乱码原因是windows下一般MP3的TAG编码为GB2312.