======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '148'
                                          'artist'  'Eels'
                                     'text_people'  ''
                                         'release'  'Revolution In The Head'
                                           'title'  "Livin' Life"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
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                                      'lastfmtags'  "['indie', 'alternative', 'singer songwriter', 'indie rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie'
                                             'bpm'  '145.895'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000865 000000E9 00006B0C'
'COMM:iTunNORM:eng'                                 (' 00000865 000000E9 00006B0C 00001966 0000E5E5 0001F778 00006C15 00006BA3 '
 '00019034 00019034')
'TALB' (Album/Movie/Show title)                     'Revolution In The Head'
'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie'
'TDRC' (Recording time)                             '1997'
'TENC' (Encoded by)                                 'iTunes v4.8.0.32'
'TIT2' (Title/songname/content description)         "Livin' Life"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Eels'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'singer songwriter', 'indie rock', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.30 dB'
'TXXX:replaygain_track_peak'                        '0.607114'

========================== row from database ==========================
                                              'id'  1517281
                                            'path'  /data/Music/Bulk/00poprockelectronic/Revolution In The Head/04 Livin_ Life.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  148
                                           'genre'  ifs-songwriter-indie
                                        'filesize'  2380796
                                           'mtime'  1636400568
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 04 Livin_ ifs songwriter indie
                                      'tag_artist'  Eels
                                     'tag_release'  Revolution In The Head
                                       'tag_title'  Livin' Life
                                             'bpm'  145.895
                                    'search_title'  'life':3 'livin':1,2
                                   'search_artist'  'eels':1
                                  'search_release'  'head':4 'in':2 'revolution':1 'the':3
                                     'search_rest'  '00poprockelectronic':1 'ifs':3 'indie':5 'livin':2 'songwriter':4
                                    'search_combo'  '00poprockelectronic':9 'eels':4B 'head':8C 'ifs':11 'in':6C 'indie':13 'life':3A 'livin':1A,2A,10 'revolution':5C 'songwriter':12 'the':7C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'singer songwriter', 'indie rock', 'rock']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400568.2481747  (2021-11-08 20:42:48)
                             'size'  2380796