null separator syntax in tagging program kid3?

[eschreye]

After some further experimenting, the following seem to work well between Kid3 and MinimServer:
Wav / ID3v2.4.0: in the Artist field insert null separator ‘|’ between names of the artists
Aiff / ID3v2.4.0: id Wav ID3v2.4.0
Flac / Vorbis: create multiple artist frames adding artists in the "Tag 2" section