======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '133'
                                          'artist'  'The Four Kings'
                                     'text_people'  ''
                                         'release'  'Explosive Doowops - Vol. 01 (Bb 55021)'
                                           'title'  'One Night'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'q-syn-1', 'q-bass-2', "
 "'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', 'q-other-1', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['rhythm and blues', 'doo wop']"
                                     'discogstags'  "['pop rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-doowop'
                                             'bpm'  '140.3'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Explosive Doowops - Vol. 01 (Bb 55021)'
'TBPM' (BPM (beats per minute))                     '140.3'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-doowop'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'One Night'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Four Kings'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['pop rock', 'rock']
'TXXX:lastfmtags'                                   ['rhythm and blues', 'doo wop']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'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'                        '+0.17 dB'
'TXXX:replaygain_track_peak'                        '0.380687'

========================== row from database ==========================
                                              'id'  947415
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/va - Explosive Doowops - Vol. 01 (Bb 55021)/01 - The Four Kings - One Night.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  133
                                           'genre'  rock-pop-early-doowop
                                        'filesize'  2141679
                                           'mtime'  1620736357
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm va rock pop early doowop
                                      'tag_artist'  The Four Kings
                                     'tag_release'  Explosive Doowops - Vol. 01 (Bb 55021)
                                       'tag_title'  One Night
                                             'bpm'  140.3
                                    'search_title'  'night':2 'one':1
                                   'search_artist'  'four':2 'kings':3 'the':1
                                  'search_release'  '55021':7,8 'bb':5,6 'doowops':2 'explosive':1 'vol':3,4
                                     'search_rest'  'doowop':5 'early':4 'pop':3 'rock':2 'va':1
                                    'search_combo'  '55021':12C,13C 'bb':10C,11C 'doowop':18 'doowops':7C 'early':17 'explosive':6C 'four':4B 'kings':5B 'night':2A 'one':1A 'pop':16 'rock':15 'the':3B 'va':14 'vol':8C,9C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['rhythm and blues', 'doo wop']
                                        'tag_date'  1960
                                     'discogstags'  ['pop rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620736357.0243087  (2021-05-11 14:32:37)
                             'size'  2141679