ID3 Reader 是一款可以在前台或者后台（nodejs）解析MP3曲目信息（前提是含有这些信息）的工具

官方demo 源码下载 全英文文档

用法示例

1，基本用法

//In its simplest form:
ID3.loadTags("filename.mp3", function() {var tags = ID3.getAllTags(filename);alert(tags.artist + " - " + tags.title + ", " + tags.album);
});

2，特殊用法

//by specifying specific tags:
ID3.loadTags("filename.mp3", function() {var tags = ID3.getAllTags(filename);alert(tags.COMM.data + " - " + tags.TCON.data + ", " + tags.WXXX.data);
},
{tags: ["COMM", "TCON", "WXXX"]});
//or even by specifying shortcuts instead of cryptic tags:
ID3.loadTags("filename.mp3", function() {var tags = ID3.getAllTags(filename);alert(tags.comment + " - " + tags.track + ", " + tags.lyrics);
},
{tags: ["comment", "track", "lyrics"]});

3，文档及API

ID3.loadTags(url, cb, [options])//文件路径，回调函数，参数数组url - The URL of the mp3 file to read, this must reside on the same domain (document.domain).
//文件必须在同域名下cb - The callback function to invoke when the tags are loaded.
//文件加载完毕后执行options - Optional parameters.
//参数数组options.tags - The array of tags and/or shortcuts to read from the ID3 block. Default value is: ["title", "artist", "album", "track"]options.dataReader - The function used to create the data reader out of a url. It receives (url, success: callback function that returns the data reader, fail: callback function to inform an error setting up the reader). By default it will be BufferedBinaryAjax.

ID3.getAllTags(url)url - The URL of the mp3 file to read, this must be the same value given to ID3.loadTags().return value - This function will return the following object structure, for IDv1:
{version: "1.1",title: string,artist: string,album: string,year: string,comment: string,track: string,genre: string
}and for ID3v2:{version: "2.<major>.<revision>",major: integer,revision: integer,flags: {unsynchronisation: boolean,extended_header: boolean,experimental_indicator: boolean},size: integer,<frame id>*: {id: integer,size: integer,description: string,data: <frame structure>},<shortcut>*: pointer to <frame id>.data
}

Currently supported frames:APIC/PIC: Attached pictureCOMM/COM: CommentsPCNT/CNT: Play counterT*: Text framesUSLT/ULT: Unsychronized lyric/text transcriptionShortcuts:title: TIT2/TT2artist: TPE1/TP1album: TALB/TALyear: TYER/TYEcomment: COMM/COMtrack: TRCK/TRKgenre: TCON/TCOpicture: APIC/PIC
lyrics: USLT/ULT

备注：留待再更新编辑