======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '390'
                                          'artist'  'VNV Nation'
                                     'text_people'  ''
                                         'release'  'Mix'
                                           'title'  'Genesis (C92 Version By Vnv Nation)'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['ebm', 'industrial', 'electronic', 'synthpop', 'futurepop']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '135.094'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Mix'
'TBPM' (BPM (beats per minute))                     '135.094'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TIT2' (Title/songname/content description)         'Genesis (C92 Version By Vnv Nation)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'VNV Nation'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['ebm', 'industrial', 'electronic', 'synthpop', 'futurepop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.52 dB'
'TXXX:replaygain_track_peak'                        '0.558588'

========================== row from database ==========================
                                              'id'  1341541
                                            'path'  /data/Music/Bulk/00dwimp/VNV Nation/02. Vnv Nation - Genesis (C92 Version By Vnv Nation).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  390
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  9383975
                                           'mtime'  1620296834
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 02. eid ebm or industrial or darkwave
                                      'tag_artist'  VNV Nation
                                     'tag_release'  Mix
                                       'tag_title'  Genesis (C92 Version By Vnv Nation)
                                             'bpm'  135.094
                                    'search_title'  'by':5 'c92':2,3 'genesis':1 'nation':7,8 'version':4 'vnv':6
                                   'search_artist'  'nation':2 'vnv':1
                                  'search_release'  'mix':1
                                     'search_rest'  '00dwimp':1 '02':2,3 'darkwave':8 'ebm':5 'eid':4 'industrial':7 'or':6
                                    'search_combo'  '00dwimp':12 '02':13,14 'by':5A 'c92':2A,3A 'darkwave':19 'ebm':16 'eid':15 'genesis':1A 'industrial':18 'mix':11C 'nation':7A,8A,10B 'or':17 'version':4A 'vnv':6A,9B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['ebm', 'industrial', 'electronic', 'synthpop', 'futurepop']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620296834.0137994  (2021-05-06 12:27:14)
                             'size'  9383975