======================== unified (from filesystem) ========================
                                         'bitrate'  '56.0'
                                        'duration'  '184'
                                          'artist'  ''
                                     'text_people'  ''
                                         'release'  'American Pop - An Audio History - Disc 2'
                                           'title'  'Uncle Bunt Stephens - Candy Girl'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
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                                     'tracknumber'  '19'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '122.957'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'American Pop - An Audio History - Disc 2'
'TBPM' (BPM (beats per minute))                     '122.957'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TIT2' (Title/songname/content description)         'Uncle Bunt Stephens - Candy Girl'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '184346'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'various artists'
'TRCK' (Track number/Position in set)               '19'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.72 dB'
'TXXX:replaygain_track_peak'                        '0.416938'

========================== row from database ==========================
                                              'id'  735828
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Uncle Bunt Stephens - Candy Girl.mp3
                                         'working'  None
                                         'bitrate'  56
                                    'duration_sec'  184
                                           'genre'  set-th-candy
                                        'filesize'  1292160
                                           'mtime'  1620343134
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets set th candy
                                      'tag_artist'  Various
                                     'tag_release'  American Pop - An Audio History - Disc 2
                                       'tag_title'  Uncle Bunt Stephens - Candy Girl
                                             'bpm'  122.957
                                    'search_title'  'bunt':2 'candy':4 'girl':5 'stephens':3 'uncle':1
                                   'search_artist'  'various':1
                                  'search_release'  '2':7 'american':1 'an':3 'audio':4 'disc':6 'history':5 'pop':2
                                     'search_rest'  'candy':8 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':6 'sweets':5 'th':7
                                    'search_combo'  '2':12C 'american':6C 'an':8C 'audio':9C 'bunt':2A 'candy':4A,20 'country':16 'disc':11C 'exotica':14 'girl':5A 'history':10C 'jazz':13 'oldies':15 'pop':7C 'set':18 'stephens':3A 'sweets':17 'th':19 'uncle':1A
                                    'tag_tracknum'  19
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343133.9331155  (2021-05-07 01:18:53)
                             'size'  1292160