======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '192'
                                          'artist'  'David Bowie'
                                     'text_people'  ''
                                         'release'  'Labyrinth'
                                           'title'  'Sarah'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', '80s', 'alternative', 'rock', 'glam rock']"
                                     'discogstags'  "['pop rock', 'synth-pop', 'electronic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '125.393'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 0000017B 0000016D 000004DE 000005FD 00015FBE 000186E5 000036C8 00003865 '
 '00011187 000186E5')
'TALB' (Album/Movie/Show title)                     'Labyrinth'
'TBPM' (BPM (beats per minute))                     '125.393'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'Sarah'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Trevor Jones'
'TPE2' (Band/orchestra/accompaniment)               'David Bowie'
'TRCK' (Track number/Position in set)               '4'
'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:discogstags'                                  ['pop rock', 'synth-pop', 'electronic', 'rock']
'TXXX:lastfmtags'                                   ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.50 dB'
'TXXX:replaygain_track_peak'                        '0.466944'

========================== row from database ==========================
                                              'id'  350139
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/David Bowie/[1986] Labyrinth/04 Sarah.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  192
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  3120137
                                           'mtime'  1623430291
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos [1986] 04 ifs songwriter eos
                                      'tag_artist'  David Bowie
                                     'tag_release'  Labyrinth
                                       'tag_title'  Sarah
                                             'bpm'  125.393
                                    'search_title'  'sarah':1
                                   'search_artist'  'bowie':2 'david':1
                                  'search_release'  'labyrinth':1
                                     'search_rest'  '00singer':1 '1986':4,5 'eos':3 'ifs':6 'songwriter':2
                                    'search_combo'  '00singer':5 '1986':8,9 'bowie':3B 'david':2B 'eos':7 'ifs':10 'labyrinth':4C 'sarah':1A 'songwriter':6
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
                                        'tag_date'  1986
                                     'discogstags'  ['pop rock', 'synth-pop', 'electronic', 'rock']

============================== file details ==============================
                                           'mtime'  1623430291.424689  (2021-06-11 18:51:31)
                             'size'  3120137