======================== unified (from filesystem) ========================
                                         'bitrate'  '208.522'
                                        'duration'  '180'
                                          'artist'  'Amelita Galli-Curci'
                                     'text_people'  ''
                                         'release'  'MR-041  String Of Pearls: Jewels Of The 78rpm Era 1918-1951'
                                           'title'  'Crepuscule'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['opera', 'italian opera', 'soprano', 'legend', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'loc-asia-thailand'
                                             'bpm'  '136.920'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'MR-041  String Of Pearls: Jewels Of The 78rpm Era 1918-1951'
'TBPM' (BPM (beats per minute))                     '136.920'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-thailand'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'Crepuscule'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Amelita Galli-Curci'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              'Mississippi Records  [MR-041-1]  LP'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['opera', 'italian opera', 'soprano', 'legend', 'classical']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.68 dB'
'TXXX:replaygain_track_peak'                        '0.555448'

========================== row from database ==========================
                                              'id'  765442
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/MR-041_ String Of Pearls_ Jewels Of The 78rpm Era 1918-1951/08 Crepuscule.mp3
                                         'working'  None
                                         'bitrate'  208
                                    'duration_sec'  180
                                           'genre'  loc-asia-thailand
                                        'filesize'  4765696
                                           'mtime'  1621628004
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 041_ Pearls_ 08 loc asia thailand
                                      'tag_artist'  Amelita Galli-Curci
                                     'tag_release'  MR-041  String Of Pearls: Jewels Of The 78rpm Era 1918-1951
                                       'tag_title'  Crepuscule
                                             'bpm'  136.92
                                    'search_title'  'crepuscule':1
                                   'search_artist'  'amelita':1 'curci':3 'galli':2 'gallicurci':4
                                  'search_release'  '041':2 '1918':12 '19181951':14 '1951':13 '78rpm':10 'era':11 'jewels':8 'mr':1 'mr041':3 'of':5 'pearls':6,7 'string':4 'the':9
                                     'search_rest'  '041':5 'asia':8 'country':4 'exotica':2 'jazz':1 'loc':7 'oldies':3 'pearls':6 'thailand':9
                                    'search_combo'  '041':7C,24 '1918':17C '19181951':19C '1951':18C '78rpm':15C 'amelita':2B 'asia':27 'country':23 'crepuscule':1A 'curci':4B 'era':16C 'exotica':21 'galli':3B 'gallicurci':5B 'jazz':20 'jewels':13C 'loc':26 'mr':6C 'mr041':8C 'of':10C 'oldies':22 'pearls':11C,12C,25 'string':9C 'thailand':28 'the':14C
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['opera', 'italian opera', 'soprano', 'legend', 'classical']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628003.95392  (2021-05-21 22:13:23)
                             'size'  4765696