======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '200'
                                          'artist'  'Paul Robeson'
                                     'text_people'  ''
                                         'release'  'Sentimental Journey 103'
                                           'title'  "When It's Sleepy Time Down South"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['american', 'blues', 'spiritual', 'folk', 'gospel']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '25'
                                      'tracktotal'  '25'
                                            'date'  '1932'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '120.5'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Sentimental Journey 103'
'TBPM' (BPM (beats per minute))                     '120.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1932'
'TENC' (Encoded by)                                 'Sargasso For A.B.S.1940S.Mp3'
'TIT2' (Title/songname/content description)         "When It's Sleepy Time Down South"
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Paul Robeson'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '25/25'
'TSSE' (Software/Hardware and settings used for encoding)  'SuperTagEditor Ver 2.00ƒÀ7‰ü'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['american', 'blues', 'spiritual', 'folk', 'gospel']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.47 dB'
'TXXX:replaygain_track_peak'                        '0.653135'

========================== row from database ==========================
                                              'id'  1503309
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/sentimental journey cd103 [80k vbr]/25 - When It_s Sleepy Time Down South - Paul Robeson.mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  200
                                           'genre'  prerock-vocal
                                        'filesize'  2005714
                                           'mtime'  1621853379
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm sentimental journey cd103 [80k vbr] 25 It_s prerock vocal
                                      'tag_artist'  Paul Robeson
                                     'tag_release'  Sentimental Journey 103
                                       'tag_title'  When It's Sleepy Time Down South
                                             'bpm'  120.5
                                    'search_title'  'down':7 'it':2 'its':4 's':3 'sleepy':5 'south':8 'time':6 'when':1
                                   'search_artist'  'paul':1 'robeson':2
                                  'search_release'  '103':3 'journey':2 'sentimental':1
                                     'search_rest'  '25':8 '80k':4,5 'cd103':3 'it':9 'journey':2 'prerock':11 's':10 'sentimental':1 'vbr':6,7 'vocal':12
                                    'search_combo'  '103':13C '25':21 '80k':17,18 'cd103':16 'down':7A 'it':2A,22 'its':4A 'journey':12C,15 'paul':9B 'prerock':24 'robeson':10B 's':3A,23 'sentimental':11C,14 'sleepy':5A 'south':8A 'time':6A 'vbr':19,20 'vocal':25 'when':1A
                                    'tag_tracknum'  25
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['american', 'blues', 'spiritual', 'folk', 'gospel']
                                        'tag_date'  1932
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853379.0375097  (2021-05-24 12:49:39)
                             'size'  2005714