======================== unified (from filesystem) ========================
                                         'bitrate'  '195.428'
                                        'duration'  '249'
                                          'artist'  'Divididos'
                                     'text_people'  ''
                                         'release'  '10 [Disc 1]'
                                           'title'  'Light My Fire'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-3']")
                                      'lastfmtags'  ("['rock argentino', 'rock nacional', 'rock', 'argentina', 'hard rock', 'rock "
 "argento']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '15'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'set-cover or covered'
                                             'bpm'  '120.686'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000007C3 00000B63 00005EFB'
'COMM:iTunNORM:eng'                                 (' 000007C3 00000B63 00005EFB 00006F10 0002BB3A 0002BB3A 00008000 00008000 '
 '0002649B 000005CE')
'TALB' (Album/Movie/Show title)                     '10 [Disc 1]'
'TBPM' (BPM (beats per minute))                     '120.686'
'TCON' (Content type, a.k.a. Genre)                 ['set-cover or covered', 'set-cover or covered']
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Light My Fire'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Divididos'
'TPE2' (Band/orchestra/accompaniment)               'Divididos'
'TPOS' (Part of a set)                              '1/2'
'TRCK' (Track number/Position in set)               '15/15'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock argentino',
 'rock nacional',
 'rock',
 'argentina',
 'hard rock',
 'rock argento']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.23 dB'
'TXXX:replaygain_track_peak'                        '0.528762'

========================== row from database ==========================
                                              'id'  1353085
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/15 - light my fire.mp3
                                         'working'  None
                                         'bitrate'  195
                                    'duration_sec'  249
                                           'genre'  set-cover or covered
                                        'filesize'  6129340
                                           'mtime'  1652397934
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 15 light my fire set cover or covered
                                      'tag_artist'  Divididos
                                     'tag_release'  10 [Disc 1]
                                       'tag_title'  Light My Fire
                                             'bpm'  120.686
                                    'search_title'  'fire':3 'light':1 'my':2
                                   'search_artist'  'divididos':1
                                  'search_release'  '1':3,4 'disc':1,2
                                     'search_rest'  '00poprockelectronic':1 'cover':11 'covered':13 'files':5,6 'fire':9 'light':7 'loose':3,4 'my':8 'or':12 'set':10 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 '1':7C,8C 'cover':19 'covered':21 'disc':5C,6C 'divididos':4B 'files':13,14 'fire':3A,17 'light':1A,15 'loose':11,12 'my':2A,16 'or':20 'set':18 'unsorted':10
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-3']
                                      'lastfmtags'  ['rock argentino', 'rock nacional', 'rock', 'argentina', 'hard rock', 'rock argento']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397934.2648458  (2022-05-13 01:25:34)
                             'size'  6129340