======================== unified (from filesystem) ========================
                                         'bitrate'  '130.02'
                                        'duration'  '152'
                                          'artist'  'Damage Done By Worms'
                                     'text_people'  ''
                                         'release'  'Tonight!'
                                           'title'  'Men Are Bad'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'neo rockabilly', 'psychobilly', 'rockabilly']"
                                     'discogstags'  "['psychobilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '120.256'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Tonight!'
'TBPM' (BPM (beats per minute))                     '120.256'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Men Are Bad'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Damage Done By Worms'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['psychobilly', 'rock']
'TXXX:lastfmtags'                                   ['german', 'neo rockabilly', 'psychobilly', 'rockabilly']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.49 dB'
'TXXX:replaygain_track_peak'                        '0.462424'

========================== row from database ==========================
                                              'id'  1287641
                                            'path'  /data/Music/Bulk/00poprockelectronic/musica/Damage Done By Worms/Tonight! [1999]/12 - Men Are Bad.mp3
                                         'working'  None
                                         'bitrate'  130
                                    'duration_sec'  152
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  2482126
                                           'mtime'  1620526305
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic musica [1999] 12 rock rockabilly psychobilly
                                      'tag_artist'  Damage Done By Worms
                                     'tag_release'  Tonight!
                                       'tag_title'  Men Are Bad
                                             'bpm'  120.256
                                    'search_title'  'are':2 'bad':3 'men':1
                                   'search_artist'  'by':3 'damage':1 'done':2 'worms':4
                                  'search_release'  'tonight':1
                                     'search_rest'  '00poprockelectronic':1 '1999':3,4 'musica':2 'psychobilly':7 'rock':5 'rockabilly':6
                                    'search_combo'  '00poprockelectronic':9 '1999':11,12 'are':2A 'bad':3A 'by':6B 'damage':4B 'done':5B 'men':1A 'musica':10 'psychobilly':15 'rock':13 'rockabilly':14 'tonight':8C 'worms':7B
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', '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-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['german', 'neo rockabilly', 'psychobilly', 'rockabilly']
                                        'tag_date'  1999
                                     'discogstags'  ['psychobilly', 'rock']

============================== file details ==============================
                                           'mtime'  1620526305.357824  (2021-05-09 04:11:45)
                             'size'  2482126