======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '273'
                                          'artist'  'Nasser El Assaad'
                                     'text_people'  ''
                                         'release'  'Hammam Cafe'
                                           'title'  'Merva'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-LOCALNESS-3', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['arabic', 'world music', 'middle eastern', 'fazee3a el music']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '10'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '112.258'
                                             'key'  '6A'
                                        'acoustid'  'b4128bac-1347-4349-8da4-89da440acdd6'
rest: ''

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

'PRIV:AverageLevel:¤\n\x00\x00'                     PRIV(owner='AverageLevel', data=b'\xa4\n\x00\x00')
'PRIV:PeakValue:nx\x00\x00'                         PRIV(owner='PeakValue', data=b'nx\x00\x00')
'TALB' (Album/Movie/Show title)                     'Hammam Cafe'
'TBPM' (BPM (beats per minute))                     '112.258'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Merva'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Nasser El Assaad'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'EMI Music France'
'TRCK' (Track number/Position in set)               '9/10'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'El Assaad, Nasser'
'TXXX:Acoustid Id'                                  'b4128bac-1347-4349-8da4-89da440acdd6'
'TXXX:BARCODE'                                      '724353727727'
'TXXX:CATALOGNUMBER'                                '5372772'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '14ceb423-d270-44e9-a5ad-8b87741f605e'
'TXXX:MusicBrainz Album Release Country'            'XE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'cba5986b-f6ca-4d7a-96a7-60e390430d4e'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['arabic', 'world music', 'middle eastern', 'fazee3a el music']
'TXXX:q-bass'                                       '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.33 dB'
'TXXX:replaygain_track_peak'                        '0.791182'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'ee1c8ea3-52b8-4589-b9cc-b40960636f39')

========================== row from database ==========================
                                              'id'  474035
                                            'path'  /data/Music/Bulk/00localcharacter/VA. World 1： Trad/Arabia Chilled ~ Music for the soul (EMI Music Arabia, 2001) [80k VBR]/09-Nasser El Assaad  Merva.mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  273
                                           'genre'  loc-unsorted
                                        'filesize'  2734730
                                           'mtime'  1621629857
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter VA. World 1： Trad Arabia Chilled ~ Music for the soul (EMI Music Arabia, 2001) [80k VBR] 09 loc unsorted
                                      'tag_artist'  Nasser El Assaad
                                     'tag_release'  Hammam Cafe
                                       'tag_title'  Merva
                                             'bpm'  112.258
                                    'search_title'  'merva':1
                                   'search_artist'  'assaad':3 'el':2 'nasser':1
                                  'search_release'  'cafe':2 'hammam':1
                                     'search_rest'  '1':4,5,6 '2001':17,18 '80k':19,20 'arabia':8,16 'chilled':9 'emi':14,15 'for':11 'loc':23 'music':10 'soul':13 'the':12 'trad':7 'unsorted':24 'va':1,2 'vbr':21,22 'world':3
                                    'search_combo'  '1':10,11,12 '2001':23,24 '80k':25,26 'arabia':14,22 'assaad':4B 'cafe':6C 'chilled':15 'el':3B 'emi':20,21 'for':17 'hammam':5C 'loc':29 'merva':1A 'music':16 'nasser':2B 'soul':19 'the':18 'trad':13 'unsorted':30 'va':7,8 'vbr':27,28 'world':9
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['arabic', 'world music', 'middle eastern', 'fazee3a el music']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629856.833205  (2021-05-21 22:44:16)
                             'size'  2734730