nemo-audio-tab: "Album Artist" tag mapping

[edschindler]

I understand tagging is fraught with many heartfelt opinions, and albumartist may be worse than most... nonetheless...

nemo-audio-tab maps its listed "Album Artist" datum to easyid3's "performer" tag, which easyid3 maps to id3's "TMCL".

Easyid3 actually has an explicit "albumartist" tag, which it maps to id3 "TPE2". Nemo-audio-tab seems to be making confusion about albumartist worse by overriding what easyid3 s doing.

In particular, line 84
try: file.add_string_attribute('albumartist', audio["performer"][0])
should probably say
try: file.add_string_attribute('albumartist', audio["albumartist"][0])

(I have not tried the elsewhere-suggested mediainfo-tab extension (#497), perhaps replacing audio-tab with it will resolve this.)