======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '183'
                                          'artist'  'Green Day'
                                     'text_people'  ''
                                         'release'  'Dookie'
                                           'title'  'Basket Case'
                                           'quals'  ("['Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['punk rock', 'pop punk', 'punk', 'alternative', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'pop punk', 'punk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '218'
                                      'tracktotal'  ''
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;rock-gr-punk-pop'
                                             'bpm'  '117.877'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dookie'
'TBPM' (BPM (beats per minute))                     '117.877'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'rock-gr-punk-pop']
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Basket Case'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Green Day'
'TRCK' (Track number/Position in set)               '218'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'pop punk', 'punk']
'TXXX:lastfmtags'                                   ['punk rock', 'pop punk', 'punk', 'alternative', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.50 dB'
'TXXX:replaygain_track_peak'                        '0.446041'

========================== row from database ==========================
                                              'id'  1332009
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/019 - Green Day - Basket Case.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  183
                                           'genre'  electronic-generic or radio-unsorted;rock-gr-punk-pop
                                        'filesize'  4401903
                                           'mtime'  1620389161
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 019 electronic generic or radio unsorted;rock gr punk pop
                                      'tag_artist'  Green Day
                                     'tag_release'  Dookie
                                       'tag_title'  Basket Case
                                             'bpm'  117.877
                                    'search_title'  'basket':1 'case':2
                                   'search_artist'  'day':2 'green':1
                                  'search_release'  'dookie':1
                                     'search_rest'  '00poprockelectronic':1 '90s':2 'electronic':3 'generic':4 'gr':11 'or':5 'pop':13 'punk':12 'radio':6 'rock':8,10 'unsorted':7,9
                                    'search_combo'  '00poprockelectronic':6 '90s':7 'basket':1A 'case':2A 'day':4B 'dookie':5C 'electronic':8 'generic':9 'gr':16 'green':3B 'or':10 'pop':18 'punk':17 'radio':11 'rock':13,15 'unsorted':12,14
                                    'tag_tracknum'  218
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['punk rock', 'pop punk', 'punk', 'alternative', 'rock']
                                        'tag_date'  1994
                                     'discogstags'  ['rock', 'alternative rock', 'pop punk', 'punk']

============================== file details ==============================
                                           'mtime'  1620389160.6968381  (2021-05-07 14:06:00)
                             'size'  4401903