======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '98'
                                          'artist'  'Aperture Science Psychoacoustics Laboratory'
                                     'text_people'  'Aperture Science'
                                         'release'  'Portal 2 Soundtrack: Songs to Test By'
                                           'title'  'Turret Wife Serenade'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['instrumental', 'soundtrack', 'portal', 'ambient', 'electronic', "
 "'experimental']")
                                     'discogstags'  "['soundtrack', 'stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  '22'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'soundtrack-game;electronic'
                                             'bpm'  '100.108'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000004A1 00000550 00002235'
'COMM:iTunNORM:eng'                                 (' 000004A1 00000550 00002235 0000220B 0000D17D 0000C7E5 00006CCB 00007006 '
 '0000D40A 000152E0')
'COMM:iTunPGAP:eng'                                 '0/'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000AB8 0000000000426538 00000000 003C23EB 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Portal 2 Soundtrack: Songs to Test By'
'TBPM' (BPM (beats per minute))                     '100.108'
'TCOM' (Composer)                                   'Aperture Science'
'TCON' (Content type, a.k.a. Genre)                 ['soundtrack-game', 'electronic']
'TDOR' (Original release time)                      '2011'
'TDRC' (Recording time)                             '2011-09-30'
'TENC' (Encoded by)                                 'iTunes 10.2'
'TIT2' (Title/songname/content description)         'Turret Wife Serenade'
'TKEY' (Initial key)                                '3B'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Aperture Science Psychoacoustics Laboratory'
'TPE2' (Band/orchestra/accompaniment)               'Aperture Science Psychoacoustics Laboratory'
'TPOS' (Part of a set)                              '1/3'
'TPUB' (Publisher)                                  'Valve'
'TRCK' (Track number/Position in set)               '19/22'
'TSO2'                                              'Aperture Science Psychoacoustics Laboratory'
'TSOP' (Performer sort order)                       'Aperture Science Psychoacoustics Laboratory'
'TSRC' (ISRC (international standard recording code))  'USA561361561'
'TSST' (Set subtitle)                               'Volume 1'
'TXXX:MusicBrainz Album Artist Id'                  '2b948e66-5269-4311-a89d-3f1126960f9b'
'TXXX:MusicBrainz Album Id'                         'aa2448a2-fe77-4354-9b0b-021fc4392e6e'
'TXXX:MusicBrainz Album Release Country'            'XW'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'soundtrack'
'TXXX:MusicBrainz Artist Id'                        '2b948e66-5269-4311-a89d-3f1126960f9b'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['soundtrack', 'stage & screen']
'TXXX:lastfmtags'                                   ['instrumental',
 'soundtrack',
 'portal',
 'ambient',
 'electronic',
 'experimental']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+6.30 dB'
'TXXX:replaygain_track_peak'                        '0.260082'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'b651ba56-b990-46d4-9ab1-4d2fc3535663')

========================== row from database ==========================
                                              'id'  855698
                                            'path'  /data/Music/Bulk/0soundtrack/Aperture Science Psychoacoustics Laboratory - 2011 - Portal 2 Soundtrack- Songs to Test By/1.19 - Aperture Science Psychoacoustics Laboratory - Turret Wife Serenade.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  98
                                           'genre'  soundtrack-game;electronic
                                        'filesize'  3954015
                                           'mtime'  1636914555
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack 2011 1.19 soundtrack game;electronic
                                      'tag_artist'  Aperture Science Psychoacoustics Laboratory
                                     'tag_release'  Portal 2 Soundtrack: Songs to Test By
                                       'tag_title'  Turret Wife Serenade
                                             'bpm'  100.108
                                    'search_title'  'serenade':3 'turret':1 'wife':2
                                   'search_artist'  'aperture':1 'laboratory':4 'psychoacoustics':3 'science':2
                                  'search_release'  '2':2 'by':8 'portal':1 'songs':5 'soundtrack':3,4 'test':7 'to':6
                                     'search_rest'  '0soundtrack':1 '1':3 '119':5 '19':4 '2011':2 'electronic':8,10 'game':7,9 'soundtrack':6
                                    'search_combo'  '0soundtrack':16 '1':18 '119':20 '19':19 '2':9C '2011':17 'aperture':4B 'by':15C 'electronic':23,25 'game':22,24 'laboratory':7B 'portal':8C 'psychoacoustics':6B 'science':5B 'serenade':3A 'songs':12C 'soundtrack':10C,11C,21 'test':14C 'to':13C 'turret':1A 'wife':2A
                                    'tag_tracknum'  19
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'soundtrack', 'portal', 'ambient', 'electronic', 'experimental']
                                        'tag_date'  2011
                                     'discogstags'  ['soundtrack', 'stage & screen']

============================== file details ==============================
                                           'mtime'  1636914554.729879  (2021-11-14 19:29:14)
                             'size'  3954015