Defined in carb/audio/IAudioData.h

constexpr char carb::audio::kMetaDataTagLicense[] = "License"

These are metadata tags specified usage under the Vorbis Comment metadata format standard (used by .ogg and .flac), but are not supported on RIFF (.wav) files.

Vorbis Comment supports any metadata tag name, but these ones should be preferred as they have a standardized usage. These are not case sensitive. Standard metadata tag.