gopkg.in/dhowden/tag.v0 (go): Package tag provides MP3 (ID3: v1, 2.2, 2.3 and 2.4), MP4, FLAC and OGG metadata detection, parsing and artwork extraction.  Detect and parse tag metadata from an io.ReadSeeker (i.e. an *os.File):
Keywords: audio-data|checksum|flac|go|id3|id3v1|id3v2|mp3|mp4|ogg|parsing