======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '292'
                                          'artist'  'The Cure'
                                     'text_people'  ''
                                         'release'  'Greatest Hits (Limited Edition)'
                                           'title'  'A Forest (acoustic)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'new wave', 'alternative', 'post punk', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '103.062'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Greatest Hits (Limited Edition)'
'TBPM' (BPM (beats per minute))                     '103.062'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'A Forest (acoustic)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Cure'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'alternative', 'post punk', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.60 dB'
'TXXX:replaygain_track_peak'                        '0.489200'

========================== row from database ==========================
                                              'id'  182250
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Cure/19-Greatest Hits/CD 2/02-the_cure-a_forest_(acoustic).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  292
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  4677166
                                           'mtime'  1620646904
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 19 CD 2 02 the_cure a_forest_(acoustic) electronic we new wave post punk
                                      'tag_artist'  The Cure
                                     'tag_release'  Greatest Hits (Limited Edition)
                                       'tag_title'  A Forest (acoustic)
                                             'bpm'  103.062
                                    'search_title'  'a':1 'acoustic':3,4 'forest':2
                                   'search_artist'  'cure':2 'the':1
                                  'search_release'  'edition':5,6 'greatest':1 'hits':2 'limited':3,4
                                     'search_rest'  '00singer':1 '19':4 '2':6 'a':9,12 'acoustic':11,14 'cd':5 'cure':8 'electronic':15 'eos':3 'forest':10,13 'new':17 'post':19 'punk':20 'songwriter':2 'the':7 'wave':18 'we':16
                                    'search_combo'  '00singer':13 '19':16 '2':18 'a':1A,21,24 'acoustic':3A,4A,23,26 'cd':17 'cure':6B,20 'edition':11C,12C 'electronic':27 'eos':15 'forest':2A,22,25 'greatest':7C 'hits':8C 'limited':9C,10C 'new':29 'post':31 'punk':32 'songwriter':14 'the':5B,19 'wave':30 'we':28
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['80s', 'new wave', 'alternative', 'post punk', 'rock']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620646903.870545  (2021-05-10 13:41:43)
                             'size'  4677166