Mutagen supports ASF, FLAC, M4A, APE, MP3, MPC, Ogg Opus, Ogg FLAC, Ogg Speex, Ogg Theora, Ogg Vorbis, True Audio, WavPack, OptimFROG, and AIFF audio files. All versions of ID3v2 are supported, and all standard ID3v2.4 frames are parsed. It can read Xing headers to accurately calculate the bitrate and length of MP3s. ID3 and APEv2 tags can be edited regardless of audio format. It can also manipulate Ogg streams on an individual packet/page level.
Puddletag includes support for the following audio formats: AAC, MP4 (mp4/m4a/m4b/iTunes compatible), OGG, OptimFROG OFR, OFS, SPX, TAK, TTA, WMA, WV.
"License file on github repository". GitHub. 22 October 2021. https://github.com/keithgg/puddletag/blob/master/source/LICENSE ↩
"Puddletag package versions - Repology". https://repology.org/project/puddletag ↩
"Puddletag - Browse /Puddletag at SourceForge.net". https://sourceforge.net/projects/puddletag/files/puddletag/ ↩
"Home — puddletag". Archived from the original on 2016-01-28. Retrieved 2016-01-28. http://puddletag.sourceforge.net/ ↩