======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '160'
                                          'artist'  'Majandra Delfino'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'In The Air Tonight'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'electronic', 'female vocalists', 'indie rock']"
                                     'discogstags'  "['electronic', 'downtempo', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '0020'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-pop'
                                             'bpm'  '125.704'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:eng'                            '00'
'TBPM' (BPM (beats per minute))                     '125.704'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-pop'
'TDRC' (Recording time)                             '0020'
'TIT2' (Title/songname/content description)         'In The Air Tonight'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Majandra Delfino'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'downtempo', 'rock']
'TXXX:lastfmtags'                                   ['indie', 'electronic', 'female vocalists', 'indie rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.50 dB'
'TXXX:replaygain_track_peak'                        '0.506939'

========================== row from database ==========================
                                              'id'  1270781
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Majandra Delfino/In The Air Tonight.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  160
                                           'genre'  ifs-songwriter-pop
                                        'filesize'  2574029
                                           'mtime'  1638563049
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos In The Air Tonight ifs songwriter pop
                                      'tag_artist'  Majandra Delfino
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  125.704
                                    'search_title'  None
                                   'search_artist'  'delfino':2 'majandra':1
                                  'search_release'  
                                     'search_rest'  '00singer':1 'air':6 'eos':3 'ifs':8 'in':4 'pop':9 'songwriter':2 'the':5 'tonight':7
                                    'search_combo'  '00singer':3 'air':8 'delfino':2B 'eos':5 'ifs':10 'in':6 'majandra':1B 'pop':11 'songwriter':4 'the':7 'tonight':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-piano-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'electronic', 'female vocalists', 'indie rock']
                                        'tag_date'  
                                     'discogstags'  ['electronic', 'downtempo', 'rock']

============================== file details ==============================
                                           'mtime'  1638563048.94415  (2021-12-03 21:24:08)
                             'size'  2574029