======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '202'
                                          'artist'  'Roxette'
                                     'text_people'  ''
                                         'release'  'The Pop Hits'
                                           'title'  'The Centre of the Heart'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'pop rock', 'pop', 'rock']"
                                     'discogstags'  "['electronic', 'rock', 'pop', 'soft rock', 'synth-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '103.115'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Pop Hits'
'TBPM' (BPM (beats per minute))                     '103.115'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'The Centre of the Heart'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Roxette'
'TRCK' (Track number/Position in set)               '13'
'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'                                  ['electronic', 'rock', 'pop', 'soft rock', 'synth-pop']
'TXXX:lastfmtags'                                   ['80s', 'pop rock', 'pop', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.05 dB'
'TXXX:replaygain_track_peak'                        '0.445801'

========================== row from database ==========================
                                              'id'  1328906
                                            'path'  /data/Music/Bulk/00poprockelectronic/Roxette/13_The Centre Of The Heart.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  202
                                           'genre'  rock-unsorted
                                        'filesize'  4859093
                                           'mtime'  1647352901
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 13_The Of rock unsorted
                                      'tag_artist'  Roxette
                                     'tag_release'  The Pop Hits
                                       'tag_title'  The Centre of the Heart
                                             'bpm'  103.115
                                    'search_title'  'centre':2 'heart':4 'of':3 'the':1
                                   'search_artist'  'roxette':1
                                  'search_release'  'hits':3 'pop':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 '13':2 'of':4 'rock':5 'the':3 'unsorted':6
                                    'search_combo'  '00poprockelectronic':9 '13':10 'centre':2A 'heart':4A 'hits':8C 'of':3A,12 'pop':7C 'rock':13 'roxette':5B 'the':1A,6C,11 'unsorted':14
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['80s', 'pop rock', 'pop', 'rock']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic', 'rock', 'pop', 'soft rock', 'synth-pop']

============================== file details ==============================
                                           'mtime'  1647352901.2470872  (2022-03-15 15:01:41)
                             'size'  4859093