======================== unified (from filesystem) ========================
                                         'bitrate'  '320.057'
                                        'duration'  '287'
                                          'artist'  'The Prodigy'
                                     'text_people'  ''
                                         'release'  'Smack My Bitch Up'
                                           'title'  'Smack My Bitch Up (radio edit)'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['industrial', 'dance', 'techno', 'electronic', 'electronica']"
                                     'discogstags'  "['electronic', 'breakbeat', 'drum n bass', 'big beat']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat'
                                             'bpm'  '136.276'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Smack My Bitch Up'
'TBPM' (BPM (beats per minute))                     '136.276'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-bigbeat'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Smack My Bitch Up (radio edit)'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Prodigy'
'TRCK' (Track number/Position in set)               '1'
'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', 'breakbeat', 'drum n bass', 'big beat']
'TXXX:lastfmtags'                                   ['industrial', 'dance', 'techno', 'electronic', 'electronica']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.44 dB'
'TXXX:replaygain_track_peak'                        '0.393253'

========================== row from database ==========================
                                              'id'  1403234
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Prodigy/Smack My Bitch Up (1997)/MBZ;#The Prodigy;#Smack My Bitch Up;#01;#Smack My Bitch Up (radio edit).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  287
                                           'genre'  electronic-generic or radio-bigbeat
                                        'filesize'  11505187
                                           'mtime'  1621695870
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat (1997) MBZ;#The Prodigy;#Smack Up;#01;#Smack electronic generic or bigbeat
                                      'tag_artist'  The Prodigy
                                     'tag_release'  Smack My Bitch Up
                                       'tag_title'  Smack My Bitch Up (radio edit)
                                             'bpm'  136.276
                                    'search_title'  'bitch':3 'edit':7,8 'my':2 'radio':5,6 'smack':1 'up':4
                                   'search_artist'  'prodigy':2 'the':1
                                  'search_release'  'bitch':3 'my':2 'smack':1 'up':4
                                     'search_rest'  '00poprockelectronic':1 '01':16,19 '1997':5,6 'bigbeat':23 'dance':3 'electronic':21 'generic':2 'mbz':7,9 'or':22 'prodigy':11,13 'smack':12,14,17,20 'the':8,10 'trapbeat':4 'up':15,18
                                    'search_combo'  '00poprockelectronic':15 '01':30,33 '1997':19,20 'bigbeat':37 'bitch':3A,13C 'dance':17 'edit':7A,8A 'electronic':35 'generic':16 'mbz':21,23 'my':2A,12C 'or':36 'prodigy':10B,25,27 'radio':5A,6A 'smack':1A,11C,26,28,31,34 'the':9B,22,24 'trapbeat':18 'up':4A,14C,29,32
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'dance', 'techno', 'electronic', 'electronica']
                                        'tag_date'  1997
                                     'discogstags'  ['electronic', 'breakbeat', 'drum n bass', 'big beat']

============================== file details ==============================
                                           'mtime'  1621695869.5598526  (2021-05-22 17:04:29)
                             'size'  11505187