======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '299'
                                          'artist'  'Laurie Anderson'
                                     'text_people'  ''
                                         'release'  'Big Science'
                                           'title'  'Born, Never Asked'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  ("['electronic', 'female vocalists', 'avant garde', 'spoken word', "
 "'experimental']")
                                     'discogstags'  "['electronic', 'rock', 'avantgarde', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '9'
                                            'date'  '1982'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '84.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 000000D4 000000C4 00002383 00000EC7 00015349 00016FC1 00004E27 000043B8 '
 '000308BC 00005AD0')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000888 0000000000C93EE8 00000000 0048FA74 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '9+F9E884852907DA464C0E938E79593158+577847'
'TALB' (Album/Movie/Show title)                     'Big Science'
'TBPM' (BPM (beats per minute))                     '84.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1982'
'TENC' (Encoded by)                                 'iTunes v7.1.1.5'
'TIT2' (Title/songname/content description)         'Born, Never Asked'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Laurie Anderson'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '5/9'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'rock', 'avantgarde', 'experimental']
'TXXX:lastfmtags'                                   ['electronic', 'female vocalists', 'avant garde', 'spoken word', 'experimental']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.21 dB'
'TXXX:replaygain_track_peak'                        '0.857659'

========================== row from database ==========================
                                              'id'  1342770
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/never asked 05 born.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  299
                                           'genre'  electronic-unsorted
                                        'filesize'  4788292
                                           'mtime'  1620573180
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] never asked 05 born electronic unsorted
                                      'tag_artist'  Laurie Anderson
                                     'tag_release'  Big Science
                                       'tag_title'  Born, Never Asked
                                             'bpm'  84.0
                                    'search_title'  'asked':4 'born':1,2 'never':3
                                   'search_artist'  'anderson':2 'laurie':1
                                  'search_release'  'big':1 'science':2
                                     'search_rest'  '00poprockelectronic':1 'asked':8 'born':9 'electronic':10 'files':5,6 'loose':3,4 'never':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 'anderson':6B 'asked':4A,16 'big':7C 'born':1A,2A,17 'electronic':18 'files':13,14 'laurie':5B 'loose':11,12 'never':3A,15 'science':8C 'unsorted':10
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'female vocalists', 'avant garde', 'spoken word', 'experimental']
                                        'tag_date'  1982
                                     'discogstags'  ['electronic', 'rock', 'avantgarde', 'experimental']

============================== file details ==============================
                                           'mtime'  1620573180.0770605  (2021-05-09 17:13:00)
                             'size'  4788292