======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '178'
                                          'artist'  'Beastie Boys'
                                     'text_people'  ''
                                         'release'  'Hello Nasty'
                                           'title'  "I Don't Know"
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', 'Q-OLDST-3', "
 "'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', "
 "'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-3']")
                                      'lastfmtags'  "['alternative', 'hip hop', 'rap', 'rock']"
                                     'discogstags'  "['hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '22'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat'
                                             'bpm'  '114'
                                             'key'  '8B'
                                        'acoustid'  '77dc59f9-f0dd-47b7-b8e0-87cd44a85776'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Hello Nasty'
'TBPM' (BPM (beats per minute))                     '114'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-bigbeat'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         "I Don't Know"
'TKEY' (Initial key)                                '8B'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Beastie Boys'
'TPE2' (Band/orchestra/accompaniment)               'Beastie Boys'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Capitol Records'
'TRCK' (Track number/Position in set)               '15/22'
'TSO2'                                              'Beastie Boys'
'TSOP' (Performer sort order)                       'Beastie Boys'
'TSRC' (ISRC (international standard recording code))  'USCA20903772/USCA29800198'
'TXXX:ASIN'                                         'B00HAPTX42'
'TXXX:Acoustid Id'                                  '77dc59f9-f0dd-47b7-b8e0-87cd44a85776'
'TXXX:Artists'                                      'Beastie Boys'
'TXXX:BARCODE'                                      '0724383771653'
'TXXX:MusicBrainz Album Artist Id'                  '9beb62b2-88db-4cea-801e-162cd344ee53'
'TXXX:MusicBrainz Album Id'                         'f2212d7c-bada-4d97-8cf9-8fb8c0efdd0e'
'TXXX:MusicBrainz Album Release Country'            'XW'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '9beb62b2-88db-4cea-801e-162cd344ee53'
'TXXX:MusicBrainz Release Group Id'                 '96c996ab-2a78-3abd-8974-c96b5724ae28'
'TXXX:MusicBrainz Release Track Id'                 'ed82551f-cd31-472d-b773-d7f1432a7173'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'hip hop'
'TXXX:lastfmtags'                                   ['alternative', 'hip hop', 'rap', 'rock']
'TXXX:originalyear'                                 '1998'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.57 dB'
'TXXX:replaygain_track_peak'                        '0.833225'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'01b84cfe-b5a0-4a1f-9c70-3b77dfe8e6cc')

========================== row from database ==========================
                                              'id'  1509217
                                            'path'  /data/Music/Bulk/00poprockelectronic/Beasty Boys/Hello Nasty/Beastie Boys - I Don_t Know.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  178
                                           'genre'  electronic-generic or radio-bigbeat
                                        'filesize'  2925083
                                           'mtime'  1620567594
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Beasty Don_t electronic generic or radio bigbeat
                                      'tag_artist'  Beastie Boys
                                     'tag_release'  Hello Nasty
                                       'tag_title'  I Don't Know
                                             'bpm'  114.0
                                    'search_title'  'don':2 'dont':4 'i':1 'know':5 't':3
                                   'search_artist'  'beastie':1 'boys':2
                                  'search_release'  'hello':1 'nasty':2
                                     'search_rest'  '00poprockelectronic':1 'beasty':2 'bigbeat':9 'don':3 'electronic':5 'generic':6 'or':7 'radio':8 't':4
                                    'search_combo'  '00poprockelectronic':10 'beastie':6B 'beasty':11 'bigbeat':18 'boys':7B 'don':2A,12 'dont':4A 'electronic':14 'generic':15 'hello':8C 'i':1A 'know':5A 'nasty':9C 'or':16 'radio':17 't':3A,13
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-4', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative', 'hip hop', 'rap', 'rock']
                                        'tag_date'  1998
                                     'discogstags'  ['hip hop']

============================== file details ==============================
                                           'mtime'  1620567594.2929616  (2021-05-09 15:39:54)
                             'size'  2925083