======================== unified (from filesystem) ========================
                                         'bitrate'  '166.901'
                                        'duration'  '292'
                                          'artist'  'Abba'
                                     'text_people'  ''
                                         'release'  'The album'
                                           'title'  'The name of the game'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['swedish', '70s', 'pop', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '9'
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo;set-pl-billboard'
                                             'bpm'  '143.0'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_1:eng'                            '82096D09+181162+9+182+26270+44622+65095+87020+108272+125195+142450+162910'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '4'
'TALB' (Album/Movie/Show title)                     'The album'
'TBPM' (BPM (beats per minute))                     '143.0'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-we-disco or italo', 'set-pl-billboard']
'TDRC' (Recording time)                             '1977'
'TENC' (Encoded by)                                 'iTunes X v2.0.4'
'TIT2' (Title/songname/content description)         'The name of the game'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Abba'
'TRCK' (Track number/Position in set)               '4/9'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['swedish', '70s', 'pop', 'disco']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.23 dB'
'TXXX:replaygain_track_peak'                        '0.618362'

========================== row from database ==========================
                                              'id'  1532847
                                            'path'  /data/Music/Bulk/00poprockelectronic/Disco 70_s 80_s/ABBA/The album/Abba - The Name of the Game - 04.mp3
                                         'working'  None
                                         'bitrate'  166
                                    'duration_sec'  292
                                           'genre'  electronic-we-disco or italo;set-pl-billboard
                                        'filesize'  6102600
                                           'mtime'  1620537422
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Disco 70_s 80_s ABBA Name Game 04 electronic we disco or italo;set pl billboard
                                      'tag_artist'  Abba
                                     'tag_release'  The album
                                       'tag_title'  The name of the game
                                             'bpm'  143.0
                                    'search_title'  'game':4 'name':2 'of':3 'the':1
                                   'search_artist'  'abba':1
                                  'search_release'  'album':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 '70':3 '80':5 'abba':7 'billboard':18 'disco':2 'electronic':10 'game':9 'italo':13,15 'name':8 'or':12 'pl':17 's':4,6 'set':14,16 'we':11
                                    'search_combo'  '00poprockelectronic':8 '70':10 '80':12 'abba':5B,14 'album':7C 'billboard':25 'disco':9 'electronic':17 'game':4A,16 'italo':20,22 'name':2A,15 'of':3A 'or':19 'pl':24 's':11,13 'set':21,23 'the':1A,6C 'we':18
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-4', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['swedish', '70s', 'pop', 'disco']
                                        'tag_date'  1977
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620537422.170412  (2021-05-09 07:17:02)
                             'size'  6102600