======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '357'
                                          'artist'  'Nicki French'
                                     'text_people'  ''
                                         'release'  'Cantaditas (disc 1)'
                                           'title'  'Total Eclipse of the Heart'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', 'pop', '90s', 'female vocalists', 'eurodance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted;set-pl-billboard'
                                             'bpm'  '135.910'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Cantaditas (disc 1)'
'TBPM' (BPM (beats per minute))                     '135.910'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Total Eclipse of the Heart'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nicki French'
'TRCK' (Track number/Position in set)               '5'
'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:lastfmtags'                                   ['dance', 'pop', '90s', 'female vocalists', 'eurodance']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.21 dB'
'TXXX:replaygain_track_peak'                        '0.790575'

========================== row from database ==========================
                                              'id'  1282252
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Nicki French__cifs2925.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  357
                                           'genre'  electronic-unsorted;set-pl-billboard
                                        'filesize'  5724972
                                           'mtime'  1621696780
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] French__cifs2925 electronic unsorted;set pl billboard
                                      'tag_artist'  Nicki French
                                     'tag_release'  Cantaditas (disc 1)
                                       'tag_title'  Total Eclipse of the Heart
                                             'bpm'  135.91
                                    'search_title'  'eclipse':2 'heart':5 'of':3 'the':4 'total':1
                                   'search_artist'  'french':2 'nicki':1
                                  'search_release'  '1':4,5 'cantaditas':1 'disc':2,3
                                     'search_rest'  '00poprockelectronic':1 'billboard':15 'cifs2925':8 'electronic':9 'files':5,6 'french':7 'loose':3,4 'pl':14 'set':11,13 'unsorted':2,10,12
                                    'search_combo'  '00poprockelectronic':13 '1':11C,12C 'billboard':27 'cantaditas':8C 'cifs2925':20 'disc':9C,10C 'eclipse':2A 'electronic':21 'files':17,18 'french':7B,19 'heart':5A 'loose':15,16 'nicki':6B 'of':3A 'pl':26 'set':23,25 'the':4A 'total':1A 'unsorted':14,22,24
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'pop', '90s', 'female vocalists', 'eurodance']
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696780.0112514  (2021-05-22 17:19:40)
                             'size'  5724972