======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '245'
                                          'artist'  'Take Six'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'I Believe (Acapella)'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-4', 'q-busy-1', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['gospel', 'jazz', 'a capella', 'soul', 'a cappella']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-a capella'
                                             'bpm'  '119.900'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '119.900'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-a capella'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'I Believe (Acapella)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Take Six'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['gospel', 'jazz', 'a capella', 'soul', 'a cappella']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.18 dB'
'TXXX:replaygain_track_peak'                        '0.604909'

========================== row from database ==========================
                                              'id'  1332659
                                            'path'  /data/Music/Bulk/00poprockelectronic/Take 6/Take Six - I believe.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  245
                                           'genre'  ifs-songwriter-a capella
                                        'filesize'  3925842
                                           'mtime'  1638554938
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 6 believe ifs songwriter
                                      'tag_artist'  Take Six
                                     'tag_release'  None
                                       'tag_title'  I Believe (Acapella)
                                             'bpm'  119.9
                                    'search_title'  'acapella':3,4 'believe':2 'i':1
                                   'search_artist'  'six':2 'take':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '6':2 'believe':3 'ifs':4 'songwriter':5
                                    'search_combo'  '00poprockelectronic':7 '6':8 'acapella':3A,4A 'believe':2A,9 'i':1A 'ifs':10 'six':6B 'songwriter':11 'take':5B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['gospel', 'jazz', 'a capella', 'soul', 'a cappella']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638554937.9541347  (2021-12-03 19:08:57)
                             'size'  3925842