======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '212'
                                          'artist'  'Rowwen Hèze'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "'t Roeie Klied"
                                           '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-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['nederlandstalig', 'limburg', 'nederpop', 'folk', 'dutch']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands'
                                             'bpm'  '88.554'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '88.554'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-netherlands'
'TIT2' (Title/songname/content description)         "'t Roeie Klied"
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Rowwen Hèze'
'TXXX:Mp3gain_minmax'                               '129,194'
'TXXX:Mp3gain_undo'                                 '-002,-002,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'                                   ['nederlandstalig', 'limburg', 'nederpop', 'folk', 'dutch']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.51 dB'
'TXXX:replaygain_track_peak'                        '1.418868'

========================== row from database ==========================
                                              'id'  1518046
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/Rowwen Heze-_t Roeie Klied.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  212
                                           'genre'  loc-eur-netherlands
                                        'filesize'  3403346
                                           'mtime'  1621629403
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch Heze _t loc eur netherlands
                                      'tag_artist'  Rowwen Hèze
                                     'tag_release'  None
                                       'tag_title'  't Roeie Klied
                                             'bpm'  88.554
                                    'search_title'  'klied':4 'roeie':3 't':1,2
                                   'search_artist'  'heze':2,3 'rowwen':1
                                  'search_release'  
                                     'search_rest'  '00dutch':4 '00mid':1 'eur':8 'europe':3 'heze':5 'loc':7 'netherlands':9 'north':2 't':6
                                    'search_combo'  '00dutch':11 '00mid':8 'eur':15 'europe':10 'heze':6B,7B,12 'klied':4A 'loc':14 'netherlands':16 'north':9 'roeie':3A 'rowwen':5B 't':1A,2A,13
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['nederlandstalig', 'limburg', 'nederpop', 'folk', 'dutch']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629402.5242078  (2021-05-21 22:36:42)
                             'size'  3403346