======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '308'
                                          'artist'  'Bon Jovi'
                                     'text_people'  ''
                                         'release'  'Crush'
                                           'title'  'Thank You For Loving Me'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', '80s', 'hair metal', 'hard rock', 'rock']"
                                     'discogstags'  "['rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '133.2'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Crush'
'TBPM' (BPM (beats per minute))                     '133.2'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Thank You For Loving Me'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '308897'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Bon Jovi'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'pop rock']
'TXXX:lastfmtags'                                   ['classic rock', '80s', 'hair metal', 'hard rock', 'rock']
'TXXX:original release date'                        ['2000', '2000']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.83 dB'
'TXXX:replaygain_track_peak'                        '0.400060'

========================== row from database ==========================
                                              'id'  1346854
                                            'path'  /data/Music/Bulk/00poprockelectronic/Bon Jovi/Crush/03 - Thank You For Loving Me.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  308
                                           'genre'  rock-unsorted
                                        'filesize'  7415680
                                           'mtime'  1620389364
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 03 rock unsorted
                                      'tag_artist'  Bon Jovi
                                     'tag_release'  Crush
                                       'tag_title'  Thank You For Loving Me
                                             'bpm'  133.2
                                    'search_title'  'for':3 'loving':4 'me':5 'thank':1 'you':2
                                   'search_artist'  'bon':1 'jovi':2
                                  'search_release'  'crush':1
                                     'search_rest'  '00poprockelectronic':1 'rock':2 'unsorted':3
                                    'search_combo'  '00poprockelectronic':9 'bon':6B 'crush':8C 'for':3A 'jovi':7B 'loving':4A 'me':5A 'rock':10 'thank':1A 'unsorted':11 'you':2A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '80s', 'hair metal', 'hard rock', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  ['rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1620389363.7951274  (2021-05-07 14:09:23)
                             'size'  7415680