======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '220'
                                          'artist'  'Heart'
                                     'text_people'  ''
                                         'release'  'Heart'
                                           'title'  'What About Love'
                                           'quals'  ("['Q-UNU-1', '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['hard rock', '80s', 'rock', 'female vocalists', 'classic rock']"
                                     'discogstags'  "['rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '10'
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-unsorted;set-pl-billboard'
                                             'bpm'  '107.151'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'POPM:'                                             POPM(email='', rating=255, count=0)
'TALB' (Album/Movie/Show title)                     'Heart'
'TBPM' (BPM (beats per minute))                     '107.151'
'TCON' (Content type, a.k.a. Genre)                 ['rock-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'What About Love'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Heart'
'TRCK' (Track number/Position in set)               '2/10'
'TXXX:AccurateRipDiscID'                            '010-000ef26c-0077fe74-8709470a-2'
'TXXX:AccurateRipResult'                            'AccurateRip: Accurate (confidence 10)   [E62211A0]'
'TXXX:Dynamic Range (DR)'                           '11'
'TXXX:Dynamic Range (R128)'                         '7.3262701034545898'
'TXXX:Peak Level (R128)'                            '-1.8 dBTP; -1.8 Left; -2.2 Right'
'TXXX:Peak Level (Sample)'                          '-1.8 dB; -1.8 Left; -2.3 Right'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tool Name'                                    'Media Center'
'TXXX:Tool Version'                                 '22.0.48'
'TXXX:Volume Level (R128)'                          '-8.268280029296875'
'TXXX:Volume Level (ReplayGain)'                    '-3.268280029296875'
'TXXX:discogstags'                                  ['rock', 'pop rock']
'TXXX:lastfmtags'                                   ['hard rock', '80s', 'rock', 'female vocalists', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '+2.75 dB'
'TXXX:replaygain_track_peak'                        '0.404516'

========================== row from database ==========================
                                              'id'  1316530
                                            'path'  /data/Music/Bulk/00poprockelectronic/1985 complete/169 Heart - What About Love.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  220
                                           'genre'  rock-unsorted;set-pl-billboard
                                        'filesize'  9444037
                                           'mtime'  1620389100
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1985 complete 169 rock unsorted;set pl billboard
                                      'tag_artist'  Heart
                                     'tag_release'  Heart
                                       'tag_title'  What About Love
                                             'bpm'  107.151
                                    'search_title'  'about':2 'love':3 'what':1
                                   'search_artist'  'heart':1
                                  'search_release'  'heart':1
                                     'search_rest'  '00poprockelectronic':1 '169':4 '1985':2 'billboard':11 'complete':3 'pl':10 'rock':5 'set':7,9 'unsorted':6,8
                                    'search_combo'  '00poprockelectronic':6 '169':9 '1985':7 'about':2A 'billboard':16 'complete':8 'heart':4B,5C 'love':3A 'pl':15 'rock':10 'set':12,14 'unsorted':11,13 'what':1A
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  8B
                                           '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['hard rock', '80s', 'rock', 'female vocalists', 'classic rock']
                                        'tag_date'  1985
                                     'discogstags'  ['rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1620389100.0041273  (2021-05-07 14:05:00)
                             'size'  9444037