======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '238'
                                          'artist'  'Bush'
                                     'text_people'  ''
                                         'release'  'Golden State'
                                           'title'  'Superman'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', '90s', 'alternative', 'grunge', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '13'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-gr-grunge'
                                             'bpm'  '150'
                                             'key'  '4A'
                                        'acoustid'  '2b892472-3ae8-4baa-872c-75f7b173fd3b'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Golden State'
'TBPM' (BPM (beats per minute))                     '150'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-grunge'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001-11-07'
'TIT2' (Title/songname/content description)         'Superman'
'TKEY' (Initial key)                                '4A'
'TMED' (Media type)                                 'Enhanced CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Bush'
'TPE2' (Band/orchestra/accompaniment)               'Bush'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Atlantic/EastWest Japan'
'TRCK' (Track number/Position in set)               '4/13'
'TSO2'                                              'Bush'
'TSOP' (Performer sort order)                       'Bush'
'TXXX:ASIN'                                         'B00005OOEY'
'TXXX:Acoustid Id'                                  '2b892472-3ae8-4baa-872c-75f7b173fd3b'
'TXXX:Artists'                                      'Bush'
'TXXX:BARCODE'                                      '4988029730343'
'TXXX:CATALOGNUMBER'                                'AMCY-7303'
'TXXX:MusicBrainz Album Artist Id'                  '93ccd76c-3790-4435-a8bf-02bc26294b93'
'TXXX:MusicBrainz Album Id'                         'cef4e863-b6b0-3854-a342-02cad163d85c'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '93ccd76c-3790-4435-a8bf-02bc26294b93'
'TXXX:MusicBrainz Release Group Id'                 '309ad8a6-5c24-391a-ae1e-48930846f8f6'
'TXXX:MusicBrainz Release Track Id'                 'baee27a2-96e9-31b1-8179-f2c505f1fffa'
'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'                                  ['rock', 'alternative rock']
'TXXX:lastfmtags'                                   ['alternative rock', '90s', 'alternative', 'grunge', 'rock']
'TXXX:originalyear'                                 '2001'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.56 dB'
'TXXX:replaygain_track_peak'                        '0.377606'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'917b9b51-b64f-432a-b73f-bf928120eccc')

========================== row from database ==========================
                                              'id'  1311088
                                            'path'  /data/Music/Bulk/00poprockelectronic/Bush/Golden State/Bush - Superman.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  238
                                           'genre'  rock-gr-grunge
                                        'filesize'  5757043
                                           'mtime'  1636902874
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic rock gr grunge
                                      'tag_artist'  Bush
                                     'tag_release'  Golden State
                                       'tag_title'  Superman
                                             'bpm'  150.0
                                    'search_title'  'superman':1
                                   'search_artist'  'bush':1
                                  'search_release'  'golden':1 'state':2
                                     'search_rest'  '00poprockelectronic':1 'gr':3 'grunge':4 'rock':2
                                    'search_combo'  '00poprockelectronic':5 'bush':2B 'golden':3C 'gr':7 'grunge':8 'rock':6 'state':4C 'superman':1A
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['alternative rock', '90s', 'alternative', 'grunge', 'rock']
                                        'tag_date'  2001
                                     'discogstags'  ['rock', 'alternative rock']

============================== file details ==============================
                                           'mtime'  1636902874.0579302  (2021-11-14 16:14:34)
                             'size'  5757043