======================== unified (from filesystem) ========================
                                         'bitrate'  '256.239'
                                        'duration'  '238'
                                          'artist'  'Amerie'
                                     'text_people'  ''
                                         'release'  'Pitchfork: The Top 500 Tracks of the 2000s'
                                           'title'  '1 Thing'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['rnb', 'female vocalists', 'soul', 'pop', 'hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '032'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;set-pl-billboard'
                                             'bpm'  '133.403'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Pitchfork: The Top 500 Tracks of the 2000s'
'TBPM' (BPM (beats per minute))                     '133.403'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         '1 Thing'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Amerie'
'TRCK' (Track number/Position in set)               '032'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rnb', 'female vocalists', 'soul', 'pop', 'hip hop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+22.27 dB'
'TXXX:replaygain_track_peak'                        '0.025725'

========================== row from database ==========================
                                              'id'  1308781
                                            'path'  /data/Music/Bulk/00poprockelectronic/VA - Pitchfork - The Top 500 Tracks of the 2000s/032 - Amerie - 1 Thing.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  238
                                           'genre'  electronic-generic or radio-unsorted;set-pl-billboard
                                        'filesize'  7651435
                                           'mtime'  1620385368
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic VA 032 electronic generic radio unsorted;set pl billboard
                                      'tag_artist'  Amerie
                                     'tag_release'  Pitchfork: The Top 500 Tracks of the 2000s
                                       'tag_title'  1 Thing
                                             'bpm'  133.403
                                    'search_title'  '1':1 'thing':2
                                   'search_artist'  'amerie':1
                                  'search_release'  '2000s':8 '500':5 'of':7 'pitchfork':1,2 'the':3 'top':4 'tracks':6
                                     'search_rest'  '00poprockelectronic':1 'billboard':11 'electronic':3 'generic':4 'pl':10 'radio':5 'set':7,9 'unsorted':6,8 'va':2
                                    'search_combo'  '00poprockelectronic':12 '1':1A '2000s':11C '500':8C 'amerie':3B 'billboard':22 'electronic':14 'generic':15 'of':10C 'pitchfork':4C,5C 'pl':21 'radio':16 'set':18,20 'the':6C 'thing':2A 'top':7C 'tracks':9C 'unsorted':17,19 'va':13
                                    'tag_tracknum'  32
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', '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-3', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rnb', 'female vocalists', 'soul', 'pop', 'hip hop']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385368.4210916  (2021-05-07 13:02:48)
                             'size'  7651435