======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '230'
                                          'artist'  'After Dark'
                                     'text_people'  ''
                                         'release'  'Best of Trinity College'
                                           'title'  'Africa'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-LOCALNESS-1', 'q-syn-1', 'q-bass-1', "
 "'q-busy-1', 'q-grit-1', 'q-play-2', 'Q-JZFKS-1', 'q-chart-1', 'q-drums-1', "
 "'q-other-1', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  ("['heavy metal', 'nwobhm', 'new wave of british heavy metal', 'swedish', "
 "'melodifestivalen']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-a capella'
                                             'bpm'  '132.9'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Best of Trinity College'
'TBPM' (BPM (beats per minute))                     '132.9'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-a capella'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Africa'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'After Dark'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['heavy metal',
 'nwobhm',
 'new wave of british heavy metal',
 'swedish',
 'melodifestivalen']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                        '+1.94 dB'
'TXXX:replaygain_track_peak'                        '0.506773'

========================== row from database ==========================
                                              'id'  1476619
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Rockapella/Rockapella - Africa.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  230
                                           'genre'  ifs-songwriter-a capella
                                        'filesize'  3689258
                                           'mtime'  1638554941
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Rockapella Rockapella ifs songwriter capella
                                      'tag_artist'  After Dark
                                     'tag_release'  Best of Trinity College
                                       'tag_title'  Africa
                                             'bpm'  132.9
                                    'search_title'  'africa':1
                                   'search_artist'  'after':1 'dark':2
                                  'search_release'  'best':1 'college':4 'of':2 'trinity':3
                                     'search_rest'  '00singer':1 'capella':6 'eos':3 'ifs':5 'rockapella':4 'songwriter':2
                                    'search_combo'  '00singer':8 'africa':1A 'after':2B 'best':4C 'capella':13 'college':7C 'dark':3B 'eos':10 'ifs':12 'of':5C 'rockapella':11 'songwriter':9 'trinity':6C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['heavy metal', 'nwobhm', 'new wave of british heavy metal', 'swedish', 'melodifestivalen']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1638554940.5444033  (2021-12-03 19:09:00)
                             'size'  3689258