======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '183'
                                          'artist'  'The Highwaymen'
                                     'text_people'  ''
                                         'release'  'Highwayman Super Hits'
                                           'title'  'Highwayman'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  ("['classic country', 'johnny cash', 'country', 'outlaw country', 'traditional "
 "country', 'folk']")
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '101.208'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Highwayman Super Hits'
'TBPM' (BPM (beats per minute))                     '101.208'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TIT2' (Title/songname/content description)         'Highwayman'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Highwaymen'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['classic country',
 'johnny cash',
 'country',
 'outlaw country',
 'traditional country',
 'folk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.03 dB'
'TXXX:replaygain_track_peak'                        '0.766452'

========================== row from database ==========================
                                              'id'  1538908
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/Highwaymen, The__Highwayman Super Hits__cifs8b57.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  183
                                           'genre'  loc-unsorted
                                        'filesize'  2938573
                                           'mtime'  1620400471
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe Highwaymen, The__Highwayman Hits__cifs8b57 loc unsorted
                                      'tag_artist'  The Highwaymen
                                     'tag_release'  Highwayman Super Hits
                                       'tag_title'  Highwayman
                                             'bpm'  101.208
                                    'search_title'  'highwayman':1
                                   'search_artist'  'highwaymen':2 'the':1
                                  'search_release'  'highwayman':1 'hits':3 'super':2
                                     'search_rest'  '00mid':1 'cifs8b57':9 'europe':3 'highwayman':7 'highwaymen':4,5 'hits':8 'loc':10 'north':2 'the':6 'unsorted':11
                                    'search_combo'  '00mid':7 'cifs8b57':15 'europe':9 'highwayman':1A,4C,13 'highwaymen':3B,10,11 'hits':6C,14 'loc':16 'north':8 'super':5C 'the':2B,12 'unsorted':17
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']
                                      'lastfmtags'  ['classic country', 'johnny cash', 'country', 'outlaw country', 'traditional country', 'folk']
                                        'tag_date'  
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1620400471.4823198  (2021-05-07 17:14:31)
                             'size'  2938573