======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '405'
                                          'artist'  'Sigur Rós'
                                     'text_people'  ''
                                         'release'  'Agaetis Byrjun'
                                           'title'  'Staralfur'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'alternative', 'icelandic', 'post rock', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '129.1'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Agaetis Byrjun'
'TBPM' (BPM (beats per minute))                     '129.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Staralfur'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sigur Rós'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'icelandic', 'post rock', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.38 dB'
'TXXX:replaygain_track_peak'                        '0.445313'

========================== row from database ==========================
                                              'id'  986198
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Epitonic ambient/Sigur Ros-Staralfur.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  405
                                           'genre'  electronic-ambient
                                        'filesize'  6487804
                                           'mtime'  1636910382
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Epitonic ambient Ros electronic ambient
                                      'tag_artist'  Sigur Rós
                                     'tag_release'  Agaetis Byrjun
                                       'tag_title'  Staralfur
                                             'bpm'  129.1
                                    'search_title'  'staralfur':1
                                   'search_artist'  'ros':2,3 'sigur':1
                                  'search_release'  'agaetis':1 'byrjun':2
                                     'search_rest'  'ambient':2 'electronic':4 'epitonic':1 'ros':3
                                    'search_combo'  'agaetis':5C 'ambient':8 'byrjun':6C 'electronic':10 'epitonic':7 'ros':3B,4B,9 'sigur':2B 'staralfur':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-3', 'q-chart-4', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'icelandic', 'post rock', 'ambient']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910381.687137  (2021-11-14 18:19:41)
                             'size'  6487804