======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '234'
                                          'artist'  'Linda Roos & Jessica'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Ademnood'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-1', "
 "'q-chart-1', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['dutch', 'girl groups', 'female vocalists', 'home collection', "
 "'nederlandstalig']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands'
                                             'bpm'  '100.009'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '100.009'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-netherlands'
'TIT2' (Title/songname/content description)         'Ademnood'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Linda Roos & Jessica'
'TXXX:Mp3gain_minmax'                               '116,190'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['dutch',
 'girl groups',
 'female vocalists',
 'home collection',
 'nederlandstalig']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.34 dB'
'TXXX:replaygain_track_peak'                        '0.632413'

========================== row from database ==========================
                                              'id'  932837
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/Linda Roos & Jessica-Ademnood.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  234
                                           'genre'  loc-eur-netherlands
                                        'filesize'  3292019
                                           'mtime'  1621629376
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch loc eur netherlands
                                      'tag_artist'  Linda Roos & Jessica
                                     'tag_release'  None
                                       'tag_title'  Ademnood
                                             'bpm'  100.009
                                    'search_title'  'ademnood':1
                                   'search_artist'  'jessica':3 'linda':1 'roos':2
                                  'search_release'  
                                     'search_rest'  '00dutch':4 '00mid':1 'eur':6 'europe':3 'loc':5 'netherlands':7 'north':2
                                    'search_combo'  '00dutch':8 '00mid':5 'ademnood':1A 'eur':10 'europe':7 'jessica':4B 'linda':2B 'loc':9 'netherlands':11 'north':6 'roos':3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dutch', 'girl groups', 'female vocalists', 'home collection', 'nederlandstalig']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629375.7800245  (2021-05-21 22:36:15)
                             'size'  3292019