======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '163'
                                          'artist'  'DJ Tiesto'
                                     'text_people'  ''
                                         'release'  '538 Dance Smash Hits - Autumn 2002'
                                           'title'  '643'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['trance', 'electronic', 'dance', 'techno', 'electronica']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '134.288'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '538 Dance Smash Hits - Autumn 2002'
'TBPM' (BPM (beats per minute))                     '134.288'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         '643'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'DJ Tiesto'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '06'
'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:lastfmtags'                                   ['trance', 'electronic', 'dance', 'techno', 'electronica']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.15 dB'
'TXXX:replaygain_track_peak'                        '0.435638'

========================== row from database ==========================
                                              'id'  1404585
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/538 Dance Smash Hits/538 Dance Smash Hits - Autumn 2002/Dj Tiesto Ft. Suzanne Palmer - 643 - 06.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  163
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  3937177
                                           'mtime'  1621695827
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Dj Ft. Suzanne Palmer 06 electronic generic or radio dance
                                      'tag_artist'  DJ Tiesto
                                     'tag_release'  538 Dance Smash Hits - Autumn 2002
                                       'tag_title'  643
                                             'bpm'  134.288
                                    'search_title'  '643':1
                                   'search_artist'  'dj':1 'tiesto':2
                                  'search_release'  '2002':6 '538':1 'autumn':5 'dance':2 'hits':4 'smash':3
                                     'search_rest'  '00poprockelectronic':1 'dance':3 'dj':5 'electronic':10 'ft':6,7 'generic':2 'or':11 'palmer':9 'radio':12 'suzanne':8 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':10 '2002':9C '538':4C '643':1A 'autumn':8C 'dance':5C,12 'dj':2B,14 'electronic':19 'ft':15,16 'generic':11 'hits':7C 'or':20 'palmer':18 'radio':21 'smash':6C 'suzanne':17 'tiesto':3B 'trapbeat':13
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['trance', 'electronic', 'dance', 'techno', 'electronica']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695827.1806605  (2021-05-22 17:03:47)
                             'size'  3937177