======================== unified (from filesystem) ========================
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                                        'duration'  '262'
                                          'artist'  'School of Seven Bells'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
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                                     'tracknumber'  '9'
                                      'tracktotal'  '11'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-shoegaze or dreampop'
                                             'bpm'  '125'
                                             'key'  '4B'
                                        'acoustid'  '74fdecab-721c-4c04-bf67-bbe52636700f'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000DB0 00000AB0 0000600C 00006D83 0003D0F0 00014F9C 00008679 000084FC '
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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000708 0000000000B08DE8 00000000 006006DC 00000000 '
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'COMM:iTunes_CDDB_IDs:eng'                          '11+060AA9CF29E4A65EFAA9EB113D2C4CC3+11552600'
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'TBPM' (BPM (beats per minute))                     '125'
'TCON' (Content type, a.k.a. Genre)                 'electronic-shoegaze or dreampop'
'TDOR' (Original release time)                      '2008'
'TDRC' (Recording time)                             '2008'
'TENC' (Encoded by)                                 'iTunes 8.0.2.20'
'TIT2' (Title/songname/content description)         'Chain'
'TKEY' (Initial key)                                '4B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'School of Seven Bells'
'TPE2' (Band/orchestra/accompaniment)               'School of Seven Bells'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Full Time Hobby'
'TRCK' (Track number/Position in set)               '9/11'
'TSO2'                                              'School of Seven Bells'
'TSOP' (Performer sort order)                       'School of Seven Bells'
'TXXX:Acoustid Id'                                  '74fdecab-721c-4c04-bf67-bbe52636700f'
'TXXX:Artists'                                      'School of Seven Bells'
'TXXX:BARCODE'                                      '5060100665672'
'TXXX:CATALOGNUMBER'                                'FTH068CDB'
'TXXX:MusicBrainz Album Artist Id'                  '57843aed-c1c1-4f45-9859-478dd999bc18'
'TXXX:MusicBrainz Album Id'                         'ebe84220-21b4-4bf3-89dd-014a09eacf03'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '57843aed-c1c1-4f45-9859-478dd999bc18'
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'TXXX:MusicBrainz Release Track Id'                 '748ac20d-32e6-3fd3-82a6-2dd83c99fa98'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'downtempo', 'indie rock', 'ethereal', 'rock']
'TXXX:lastfmtags'                                   ['psychedelic', 'shoegaze', 'electronic', 'dream pop', 'experimental']
'TXXX:originalyear'                                 '2008'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.04 dB'
'TXXX:replaygain_track_peak'                        '0.454279'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fe5ed6a7-9d3e-4f2c-91c9-473b2fec4638')
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========================== row from database ==========================
                                              'id'  1418046
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/School of Seven Bells - Alpinisms/09 Chain.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  262
                                           'genre'  electronic-shoegaze or dreampop
                                        'filesize'  6395298
                                           'mtime'  1636910062
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 09 electronic shoegaze or dreampop
                                      'tag_artist'  School of Seven Bells
                                     'tag_release'  Alpinisms
                                       'tag_title'  Chain
                                             'bpm'  125.0
                                    'search_title'  'chain':1
                                   'search_artist'  'bells':4 'of':2 'school':1 'seven':3
                                  'search_release'  'alpinisms':1
                                     'search_rest'  '00poprockelectronic':1 'dreampop':7 'electronic':4 'indierock':3 'or':6 'poprock':2 'shoegaze':5
                                    'search_combo'  '00poprockelectronic':7 'alpinisms':6C 'bells':5B 'chain':1A 'dreampop':13 'electronic':10 'indierock':9 'of':3B 'or':12 'poprock':8 'school':2B 'seven':4B 'shoegaze':11
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['psychedelic', 'shoegaze', 'electronic', 'dream pop', 'experimental']
                                        'tag_date'  2008
                                     'discogstags'  ['electronic', 'downtempo', 'indie rock', 'ethereal', 'rock']

============================== file details ==============================
                                           'mtime'  1636910062.2601554  (2021-11-14 18:14:22)
                             'size'  6395298