======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '229'
                                          'artist'  'Sandy'
                                     'text_people'  ''
                                         'release'  "Best Ever Top 100 90's  "
                                           'title'  'Bad Boy'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['mpb', 'acoustic', 'alternative', 'piano', 'folk', 'singer songwriter']"
                                     'discogstags'  "['electronic', 'euro house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '139.948'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Best Ever Top 100 90's  "
'TBPM' (BPM (beats per minute))                     '139.948'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Bad Boy'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sandy'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'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', 'euro house']
'TXXX:lastfmtags'                                   ['mpb', 'acoustic', 'alternative', 'piano', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.74 dB'
'TXXX:replaygain_track_peak'                        '0.330369'

========================== row from database ==========================
                                              'id'  1318880
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/57_Bad_Boy.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  229
                                           'genre'  ifs-songwriter
                                        'filesize'  9187328
                                           'mtime'  1637330715
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 57_Bad_Boy ifs songwriter
                                      'tag_artist'  Sandy
                                     'tag_release'  Best Ever Top 100 90's  
                                       'tag_title'  Bad Boy
                                             'bpm'  139.948
                                    'search_title'  'bad':1 'boy':2
                                   'search_artist'  'sandy':1
                                  'search_release'  '100':4 '90':5 '90s':7 'best':1 'ever':2 's':6 'top':3
                                     'search_rest'  '00poprockelectronic':1 '57':3 '90s':2 'bad':4 'boy':5 'ifs':6 'songwriter':7
                                    'search_combo'  '00poprockelectronic':11 '100':7C '57':13 '90':8C '90s':10C,12 'bad':1A,14 'best':4C 'boy':2A,15 'ever':5C 'ifs':16 's':9C 'sandy':3B 'songwriter':17 'top':6C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['mpb', 'acoustic', 'alternative', 'piano', 'folk', 'singer songwriter']
                                        'tag_date'  1995
                                     'discogstags'  ['electronic', 'euro house']

============================== file details ==============================
                                           'mtime'  1637330715.0807302  (2021-11-19 15:05:15)
                             'size'  9187328