======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '90'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Instruments de musique du monde - Musical Instruments of the World'
                                           'title'  'Luth (Tchad)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-UNU-3', 'Q-LOCALNESS-4', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '36'
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '130.398'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Instruments de musique du monde - Musical Instruments of the World'
'TBPM' (BPM (beats per minute))                     '130.398'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDOR' (Original release time)                      '1990'
'TDRC' (Recording time)                             '1990'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Burst mode)'
'TIT2' (Title/songname/content description)         'Luth (Tchad)'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Le Chant du Monde'
'TRCK' (Track number/Position in set)               '3/36'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       '[unknown]'
'TXXX:ASIN'                                         'B000027JS0'
'TXXX:Artists'                                      '[unknown]'
'TXXX:BARCODE'                                      '3149025041845'
'TXXX:CATALOGNUMBER'                                'LDX 274675/LDX 274 675'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '16e45c0b-1a6e-4ad6-b2c1-ccc8de8b3669'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '125ec42a-7229-4250-afc5-e057484327fe'
'TXXX:MusicBrainz Release Group Id'                 '57e5cbb9-c1cf-4fbd-a701-a43d7c1e7b84'
'TXXX:MusicBrainz Release Track Id'                 'cf81c984-ea3a-37f3-84b8-86a37350a785'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:originalyear'                                 '1990'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.12 dB'
'TXXX:replaygain_track_peak'                        '0.491949'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'7821a1f2-612c-4f4f-8b22-43fbc1d7928e')

========================== row from database ==========================
                                              'id'  472613
                                            'path'  /data/Music/Bulk/00localcharacter/VA. World 1： Trad/Instruments de Musique du Monde ~ Musical Instruments of the World (Le Chant Du Monde, 1990) [160k]/03.luth (tchad).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  90
                                           'genre'  loc-unsorted
                                        'filesize'  1919447
                                           'mtime'  1621627199
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter VA. 1： Trad Musique Monde ~ (Le Chant Du Monde, 1990) [160k] 03.luth (tchad) loc unsorted
                                      'tag_artist'  [unknown]
                                     'tag_release'  Instruments de musique du monde - Musical Instruments of the World
                                       'tag_title'  Luth (Tchad)
                                             'bpm'  130.398
                                    'search_title'  'luth':1 'tchad':2,3
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'de':2 'du':4 'instruments':1 'monde':5 'musical':6 'musique':3 'of':7 'the':8 'world':9
                                     'search_rest'  '03':18 '03luth':20 '1':3,4,5 '160k':16,17 '1990':14,15 'chant':11 'du':12 'le':9,10 'loc':23 'luth':19 'monde':8,13 'musique':7 'tchad':21,22 'trad':6 'unsorted':24 'va':1,2
                                    'search_combo'  '03':32 '03luth':34 '1':17,18,19 '160k':30,31 '1990':28,29 'chant':25 'de':7C 'du':9C,26 'instruments':6C 'le':23,24 'loc':37 'luth':1A,33 'monde':10C,22,27 'musical':11C 'musique':8C,21 'of':12C 'tchad':2A,3A,35,36 'the':13C 'trad':20 'unknown':4B,5B 'unsorted':38 'va':15,16 'world':14C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627198.5306334  (2021-05-21 21:59:58)
                             'size'  1919447