======================== unified (from filesystem) ========================
                                         'bitrate'  '255.878'
                                        'duration'  '224'
                                          'artist'  'Daft Punk'
                                     'text_people'  ''
                                         'release'  'Pitchfork: The Top 500 Tracks of the 2000s'
                                           'title'  'Harder, Better, Faster, Stronger'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-UNU-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', 'house', 'electronica', 'electronic', 'techno']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '139'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '123.482'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Pitchfork: The Top 500 Tracks of the 2000s'
'TBPM' (BPM (beats per minute))                     '123.482'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Harder, Better, Faster, Stronger'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Daft Punk'
'TRCK' (Track number/Position in set)               '139'
'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', 'house', 'electronica', 'electronic', 'techno']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+18.09 dB'
'TXXX:replaygain_track_peak'                        '0.073145'

========================== row from database ==========================
                                              'id'  1334519
                                            'path'  /data/Music/Bulk/00poprockelectronic/VA - Pitchfork - The Top 500 Tracks of the 2000s/139 - Daft Punk - Harder, Better, Faster, Stronger.mp3
                                         'working'  None
                                         'bitrate'  255
                                    'duration_sec'  224
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  7177827
                                           'mtime'  1621696846
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic VA 139 electronic generic radio unsorted
                                      'tag_artist'  Daft Punk
                                     'tag_release'  Pitchfork: The Top 500 Tracks of the 2000s
                                       'tag_title'  Harder, Better, Faster, Stronger
                                             'bpm'  123.482
                                    'search_title'  'better':3,4 'faster':5,6 'harder':1,2 'stronger':7
                                   'search_artist'  'daft':1 'punk':2
                                  'search_release'  '2000s':8 '500':5 'of':7 'pitchfork':1,2 'the':3 'top':4 'tracks':6
                                     'search_rest'  '00poprockelectronic':1 '139':3 'electronic':4 'generic':5 'radio':6 'unsorted':7 'va':2
                                    'search_combo'  '00poprockelectronic':18 '139':20 '2000s':17C '500':14C 'better':3A,4A 'daft':8B 'electronic':21 'faster':5A,6A 'generic':22 'harder':1A,2A 'of':16C 'pitchfork':10C,11C 'punk':9B 'radio':23 'stronger':7A 'the':12C 'top':13C 'tracks':15C 'unsorted':24 'va':19
                                    'tag_tracknum'  139
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'house', 'electronica', 'electronic', 'techno']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696846.154371  (2021-05-22 17:20:46)
                             'size'  7177827