======================== unified (from filesystem) ========================
                                         'bitrate'  '277.427'
                                        'duration'  '187'
                                          'artist'  'Shawn Mendes'
                                     'text_people'  ''
                                         'release'  'Treat You Better'
                                           'title'  'Treat You Better'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['acoustic', 'male vocalists', 'folk', 'pop', 'canadian']"
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'ifs-unsorted'
                                             'bpm'  '110.603'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Treat You Better'
'TBPM' (BPM (beats per minute))                     '110.603'
'TCON' (Content type, a.k.a. Genre)                 'ifs-unsorted'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Treat You Better'
'TKEY' (Initial key)                                '3B'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Shawn Mendes'
'TPE2' (Band/orchestra/accompaniment)               'Shawn Mendes'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'pop'
'TXXX:lastfmtags'                                   ['acoustic', 'male vocalists', 'folk', 'pop', 'canadian']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.18 dB'
'TXXX:replaygain_track_peak'                        '0.336746'

========================== row from database ==========================
                                              'id'  1319010
                                            'path'  /data/Music/Bulk/00poprockelectronic/2016/Shawn Mendes - Treat You Better.mp3
                                         'working'  None
                                         'bitrate'  277
                                    'duration_sec'  187
                                           'genre'  ifs-unsorted
                                        'filesize'  6505807
                                           'mtime'  1620566322
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2016 ifs unsorted
                                      'tag_artist'  Shawn Mendes
                                     'tag_release'  Treat You Better
                                       'tag_title'  Treat You Better
                                             'bpm'  110.603
                                    'search_title'  'better':3 'treat':1 'you':2
                                   'search_artist'  'mendes':2 'shawn':1
                                  'search_release'  'better':3 'treat':1 'you':2
                                     'search_rest'  '00poprockelectronic':1 '2016':2 'ifs':3 'unsorted':4
                                    'search_combo'  '00poprockelectronic':9 '2016':10 'better':3A,8C 'ifs':11 'mendes':5B 'shawn':4B 'treat':1A,6C 'unsorted':12 'you':2A,7C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['acoustic', 'male vocalists', 'folk', 'pop', 'canadian']
                                        'tag_date'  2016
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1620566322.349867  (2021-05-09 15:18:42)
                             'size'  6505807