======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '239'
                                          'artist'  'Mario Lanza'
                                     'text_people'  ''
                                         'release'  'Mario Lanza - The Best of Everything'
                                           'title'  'Sadko: Song of India'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['opera', 'classic', 'classical', 'tenor']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2017'
                                        'comments'  ''
                                           'genre'  'set-th-novelty'
                                             'bpm'  '135.2'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Mario Lanza - The Best of Everything'
'TBPM' (BPM (beats per minute))                     '135.2'
'TCON' (Content type, a.k.a. Genre)                 'set-th-novelty'
'TDRC' (Recording time)                             '2017'
'TIT2' (Title/songname/content description)         'Sadko: Song of India'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Mario Lanza & Constantine Callinicos'
'TPE2' (Band/orchestra/accompaniment)               'Mario Lanza'
'TRCK' (Track number/Position in set)               '7'
'TSSE' (Software/Hardware and settings used for encoding)  'MediaMonkey 4.1.13'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['opera', 'classic', 'classical', 'tenor']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.84 dB'
'TXXX:replaygain_track_peak'                        '0.340349'

========================== row from database ==========================
                                              'id'  726505
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Mario Lanza - The Best of Everything/07 - Sadko Song Of India.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  239
                                           'genre'  set-th-novelty
                                        'filesize'  9821451
                                           'mtime'  1642340175
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 07 Of set novelty
                                      'tag_artist'  Mario Lanza
                                     'tag_release'  Mario Lanza - The Best of Everything
                                       'tag_title'  Sadko: Song of India
                                             'bpm'  135.2
                                    'search_title'  'india':5 'of':4 'sadko':1,2 'song':3
                                   'search_artist'  'lanza':2 'mario':1
                                  'search_release'  'best':4 'everything':6 'lanza':2 'mario':1 'of':5 'the':3
                                     'search_rest'  'novelty':3 'of':1 'set':2
                                    'search_combo'  'best':11C 'everything':13C 'india':5A 'lanza':7B,9C 'mario':6B,8C 'novelty':16 'of':4A,12C,14 'sadko':1A,2A 'set':15 'song':3A 'the':10C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HAP-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']
                                      'lastfmtags'  ['opera', 'classic', 'classical', 'tenor']
                                        'tag_date'  2017
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642340175.1077452  (2022-01-16 14:36:15)
                             'size'  9821451