======================== unified (from filesystem) ========================
                                         'bitrate'  '180.002'
                                        'duration'  '263'
                                          'artist'  'Baby D'
                                     'text_people'  ''
                                         'release'  'Best of Rave Volume 3'
                                           'title'  'Let Me Be Your Fantasy'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['90s', 'old school hardcore', 'dance', 'rave', 'breakbeat', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '12'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'electronic-th-house'
                                             'bpm'  '135.0'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '9B0DA30C'
'TALB' (Album/Movie/Show title)                     'Best of Rave Volume 3'
'TBPM' (BPM (beats per minute))                     '135.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-house'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Let Me Be Your Fantasy'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Baby D'
'TRCK' (Track number/Position in set)               '1/12'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.92, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['90s', 'old school hardcore', 'dance', 'rave', 'breakbeat', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.26 dB'
'TXXX:replaygain_track_peak'                        '0.723762'

========================== row from database ==========================
                                              'id'  1282216
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/Prodigy - Best of Rave Volume 3/Baby D - 01 - Let Me Be Your Fantasy.mp3
                                         'working'  None
                                         'bitrate'  180
                                    'duration_sec'  263
                                           'genre'  electronic-th-house
                                        'filesize'  5932397
                                           'mtime'  1621696731
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats Prodigy 01 electronic th house
                                      'tag_artist'  Baby D
                                     'tag_release'  Best of Rave Volume 3
                                       'tag_title'  Let Me Be Your Fantasy
                                             'bpm'  135.0
                                    'search_title'  'be':3 'fantasy':5 'let':1 'me':2 'your':4
                                   'search_artist'  'baby':1 'd':2
                                  'search_release'  '3':5 'best':1 'of':2 'rave':3 'volume':4
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 'beats':5 'electronic':7 'harder':4 'house':3 'prodigy':6 'th':8
                                    'search_combo'  '00poprockelectronic':13 '00techno':14 '3':12C 'baby':6B 'be':3A 'beats':17 'best':8C 'd':7B 'electronic':19 'fantasy':5A 'harder':16 'house':15 'let':1A 'me':2A 'of':9C 'prodigy':18 'rave':10C 'th':20 'volume':11C 'your':4A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['90s', 'old school hardcore', 'dance', 'rave', 'breakbeat', 'electronic']
                                        'tag_date'  1989
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696731.4977164  (2021-05-22 17:18:51)
                             'size'  5932397