======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '204'
                                          'artist'  'Bang Bang Bazooka'
                                     'text_people'  ''
                                         'release'  'True Rebel'
                                           'title'  'Gonna Have a Ball'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock n roll', 'psychobilly', 'rockabilly', 'dutch']"
                                     'discogstags'  "['psychobilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '12'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '123.032'
                                             'key'  '8A'
                                        'acoustid'  'd70151d7-140b-40ca-a4a2-4e08a4d312c1'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'True Rebel'
'TBPM' (BPM (beats per minute))                     '123.032'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Gonna Have a Ball'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bang Bang Bazooka'
'TPE2' (Band/orchestra/accompaniment)               'Bang Bang Bazooka'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '7/12'
'TSO2'                                              'Bang Bang Bazooka'
'TSOP' (Performer sort order)                       'Bang Bang Bazooka'
'TXXX:Acoustid Id'                                  'd70151d7-140b-40ca-a4a2-4e08a4d312c1'
'TXXX:Artists'                                      'Bang Bang Bazooka'
'TXXX:MusicBrainz Album Artist Id'                  'c6b8f44b-4c88-4c0b-9a13-51f5ab8c6451'
'TXXX:MusicBrainz Album Id'                         'fe0d9d07-a55d-4c0c-816f-ce62fa086f50'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'c6b8f44b-4c88-4c0b-9a13-51f5ab8c6451'
'TXXX:MusicBrainz Release Group Id'                 '773ac38c-b5d3-3031-9d93-0ca710157dcb'
'TXXX:MusicBrainz Release Track Id'                 '519ab680-49a6-35dc-8302-815da44f10c1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['psychobilly', 'rock']
'TXXX:lastfmtags'                                   ['rock n roll', 'psychobilly', 'rockabilly', 'dutch']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.92 dB'
'TXXX:replaygain_track_peak'                        '0.594678'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'a43f1e10-84df-4a8d-b40f-82ab4f87eb9f')

========================== row from database ==========================
                                              'id'  1309734
                                            'path'  /data/Music/Bulk/00poprockelectronic/musica/Bang Bang Bazooka/true rebel/07 - Gonna Have A Ball.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  204
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  6534918
                                           'mtime'  1620526080
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic musica true rebel 07 A rock rockabilly or psychobilly
                                      'tag_artist'  Bang Bang Bazooka
                                     'tag_release'  True Rebel
                                       'tag_title'  Gonna Have a Ball
                                             'bpm'  123.032
                                    'search_title'  'a':3 'ball':4 'gonna':1 'have':2
                                   'search_artist'  'bang':1 'bazooka':2
                                  'search_release'  'rebel':2 'true':1
                                     'search_rest'  '00poprockelectronic':1 'a':5 'musica':2 'or':8 'psychobilly':9 'rebel':4 'rock':6 'rockabilly':7 'true':3
                                    'search_combo'  '00poprockelectronic':9 'a':3A,13 'ball':4A 'bang':5B 'bazooka':6B 'gonna':1A 'have':2A 'musica':10 'or':16 'psychobilly':17 'rebel':8C,12 'rock':14 'rockabilly':15 'true':7C,11
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock n roll', 'psychobilly', 'rockabilly', 'dutch']
                                        'tag_date'  1995
                                     'discogstags'  ['psychobilly', 'rock']

============================== file details ==============================
                                           'mtime'  1620526079.691719  (2021-05-09 04:07:59)
                             'size'  6534918