======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '244'
                                          'artist'  'Alice Cooper'
                                     'text_people'  ''
                                         'release'  'Billion Dollar Babies'
                                           'title'  'Elected'
                                           'quals'  ("['Q-HAP-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['heavy metal', 'glam rock', 'rock', 'hard rock', 'classic rock']"
                                     'discogstags'  "['rock', 'hard rock', 'glam', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'eid-unsorted'
                                             'bpm'  '136.0'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Billion Dollar Babies'
'TBPM' (BPM (beats per minute))                     '136.0'
'TCON' (Content type, a.k.a. Genre)                 'eid-unsorted'
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'Elected'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Alice Cooper'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'hard rock', 'glam', 'classic rock']
'TXXX:lastfmtags'                                   ['heavy metal', 'glam rock', 'rock', 'hard rock', 'classic rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.01 dB'
'TXXX:replaygain_track_peak'                        '0.443794'

========================== row from database ==========================
                                              'id'  1382232
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/03 - Elected.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  244
                                           'genre'  eid-unsorted
                                        'filesize'  5881037
                                           'mtime'  1620521350
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 03 eid unsorted
                                      'tag_artist'  Alice Cooper
                                     'tag_release'  Billion Dollar Babies
                                       'tag_title'  Elected
                                             'bpm'  136.0
                                    'search_title'  'elected':1
                                   'search_artist'  'alice':1 'cooper':2
                                  'search_release'  'babies':3 'billion':1 'dollar':2
                                     'search_rest'  '00poprockelectronic':1 'eid':7 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 'alice':2B 'babies':6C 'billion':4C 'cooper':3B 'dollar':5C 'eid':13 'elected':1A 'files':11,12 'loose':9,10 'unsorted':8
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-1', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['heavy metal', 'glam rock', 'rock', 'hard rock', 'classic rock']
                                        'tag_date'  1973
                                     'discogstags'  ['rock', 'hard rock', 'glam', 'classic rock']

============================== file details ==============================
                                           'mtime'  1620521349.7935758  (2021-05-09 02:49:09)
                             'size'  5881037