======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '169'
                                          'artist'  'The Maryland Cookies'
                                     'text_people'  ''
                                         'release'  'Cinderella The Swedish Stand 1989'
                                           'title'  'Dead And Gone'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', '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-2']")
                                      'lastfmtags'  "['umea syndrom']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '139.851'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Cinderella The Swedish Stand 1989'
'TBPM' (BPM (beats per minute))                     '139.851'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TIT2' (Title/songname/content description)         'Dead And Gone'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Maryland Cookies'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   'umea syndrom'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.88 dB'
'TXXX:replaygain_track_peak'                        '0.362737'

========================== row from database ==========================
                                              'id'  1285726
                                            'path'  /data/Music/Bulk/00poprockelectronic/swedish rock/The Maryland Cookies - Dead And GoneRe1.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  169
                                           'genre'  rock-pop
                                        'filesize'  2707328
                                           'mtime'  1620392808
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic swedish rock GoneRe1 rock pop
                                      'tag_artist'  The Maryland Cookies
                                     'tag_release'  Cinderella The Swedish Stand 1989
                                       'tag_title'  Dead And Gone
                                             'bpm'  139.851
                                    'search_title'  'and':2 'dead':1 'gone':3
                                   'search_artist'  'cookies':3 'maryland':2 'the':1
                                  'search_release'  '1989':5 'cinderella':1 'stand':4 'swedish':3 'the':2
                                     'search_rest'  '00poprockelectronic':1 'gone':6 'gonere1':4 'pop':5 're1':7 'rock':3 'swedish':2
                                    'search_combo'  '00poprockelectronic':12 '1989':11C 'and':2A 'cinderella':7C 'cookies':6B 'dead':1A 'gone':3A,17 'gonere1':15 'maryland':5B 'pop':16 're1':18 'rock':14 'stand':10C 'swedish':9C,13 'the':4B,8C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['umea syndrom']
                                        'tag_date'  
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620392808.052581  (2021-05-07 15:06:48)
                             'size'  2707328