======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '286'
                                          'artist'  'Fejd'
                                     'text_people'  ''
                                         'release'  'Eld'
                                           'title'  'Bergakungen'
                                           'quals'  ("['Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']")
                                      'lastfmtags'  ("['folk rock', 'folk metal', 'medieval', 'swedish', 'scandinavian folk', "
 "'folk']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '119.617'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Eld'
'TBPM' (BPM (beats per minute))                     '119.617'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Bergakungen'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Fejd'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['folk rock', 'folk metal', 'medieval', 'swedish', 'scandinavian folk', 'folk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.77 dB'
'TXXX:replaygain_track_peak'                        '0.564730'

========================== row from database ==========================
                                              'id'  1491490
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/Eld__cifsf898.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  286
                                           'genre'  loc-unsorted
                                        'filesize'  4583250
                                           'mtime'  1620400470
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch Eld__cifsf898 loc unsorted
                                      'tag_artist'  Fejd
                                     'tag_release'  Eld
                                       'tag_title'  Bergakungen
                                             'bpm'  119.617
                                    'search_title'  'bergakungen':1
                                   'search_artist'  'fejd':1
                                  'search_release'  'eld':1
                                     'search_rest'  '00dutch':4 '00mid':1 'cifsf898':6 'eld':5 'europe':3 'loc':7 'north':2 'unsorted':8
                                    'search_combo'  '00dutch':7 '00mid':4 'bergakungen':1A 'cifsf898':9 'eld':3C,8 'europe':6 'fejd':2B 'loc':10 'north':5 'unsorted':11
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['folk rock', 'folk metal', 'medieval', 'swedish', 'scandinavian folk', 'folk']
                                        'tag_date'  2006
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620400469.6582763  (2021-05-07 17:14:29)
                             'size'  4583250