======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '473'
                                          'artist'  'VNV Nation'
                                     'text_people'  ''
                                         'release'  'Matter and Form'
                                           'title'  'Perpetual'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', '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'  '11'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave-futurepop'
                                             'bpm'  '96.899'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Matter and Form'
'TBPM' (BPM (beats per minute))                     '96.899'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave-futurepop'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Perpetual'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'VNV Nation'
'TRCK' (Track number/Position in set)               '11'
'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'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.00 dB'
'TXXX:replaygain_track_peak'                        '0.423270'

========================== row from database ==========================
                                              'id'  1298272
                                            'path'  /data/Music/Bulk/00poprockelectronic/VNV Nation/Matter And Form/11 - perpetual.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  473
                                           'genre'  eid-ebm or industrial or darkwave-futurepop
                                        'filesize'  11372544
                                           'mtime'  1620296768
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic And 11 perpetual eid ebm industrial darkwave futurepop
                                      'tag_artist'  VNV Nation
                                     'tag_release'  Matter and Form
                                       'tag_title'  Perpetual
                                             'bpm'  96.899
                                    'search_title'  'perpetual':1
                                   'search_artist'  'nation':2 'vnv':1
                                  'search_release'  'and':2 'form':3 'matter':1
                                     'search_rest'  '00poprockelectronic':1 'and':2 'darkwave':7 'ebm':5 'eid':4 'futurepop':8 'industrial':6 'perpetual':3
                                    'search_combo'  '00poprockelectronic':7 'and':5C,8 'darkwave':13 'ebm':11 'eid':10 'form':6C 'futurepop':14 'industrial':12 'matter':4C 'nation':3B 'perpetual':1A,9 'vnv':2B
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  9B
                                           '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-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['ebm', 'industrial', 'electronic', 'synthpop', 'futurepop']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620296768.0488112  (2021-05-06 12:26:08)
                             'size'  11372544