======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '260'
                                          'artist'  'Thrice'
                                     'text_people'  ''
                                         'release'  'Identity Crisis'
                                           'title'  'Unquestioned Answers'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['emo', 'punk', 'post hardcore', 'rock', 'alternative', 'hardcore']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '09'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '128.089'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Identity Crisis'
'TBPM' (BPM (beats per minute))                     '128.089'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Unquestioned Answers'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Thrice'
'TRCK' (Track number/Position in set)               '09'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['emo', 'punk', 'post hardcore', 'rock', 'alternative', 'hardcore']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.57 dB'
'TXXX:replaygain_track_peak'                        '0.429334'

========================== row from database ==========================
                                              'id'  1305765
                                            'path'  /data/Music/Bulk/00poprockelectronic/Thrice/Identity crisis/09 - unquestioned answers.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  260
                                           'genre'  rock-gr-punk
                                        'filesize'  6247612
                                           'mtime'  1622659318
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic crisis 09 unquestioned answers rock gr punk
                                      'tag_artist'  Thrice
                                     'tag_release'  Identity Crisis
                                       'tag_title'  Unquestioned Answers
                                             'bpm'  128.089
                                    'search_title'  'answers':2 'unquestioned':1
                                   'search_artist'  'thrice':1
                                  'search_release'  'crisis':2 'identity':1
                                     'search_rest'  '00poprockelectronic':1 'answers':4 'crisis':2 'gr':6 'punk':7 'rock':5 'unquestioned':3
                                    'search_combo'  '00poprockelectronic':6 'answers':2A,9 'crisis':5C,7 'gr':11 'identity':4C 'punk':12 'rock':10 'thrice':3B 'unquestioned':1A,8
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['emo', 'punk', 'post hardcore', 'rock', 'alternative', 'hardcore']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1622659317.8689647  (2021-06-02 20:41:57)
                             'size'  6247612