======================== unified (from filesystem) ========================
                                         'bitrate'  '252.785'
                                        'duration'  '314'
                                          'artist'  'Björk'
                                     'text_people'  ''
                                         'release'  'Greatest Hits'
                                           'title'  'Pagan Poetry'
                                           'quals'  ("['Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['female vocalists', 'alternative', 'icelandic', 'electronic', 'bjork']"
                                     'discogstags'  "['electronic', 'downtempo', 'trip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '15'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '132'
                                             'key'  '12A'
                                        'acoustid'  '8626fd2b-9cb0-4551-8e45-2199ff7d6b7b'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Greatest Hits'
'TBPM' (BPM (beats per minute))                     '132'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDOR' (Original release time)                      '2002'
'TDRC' (Recording time)                             '2002-11-04'
'TIT2' (Title/songname/content description)         'Pagan Poetry'
'TKEY' (Initial key)                                '12A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Björk'
'TPE2' (Band/orchestra/accompaniment)               'Björk'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'One Little Indian Records'
'TRCK' (Track number/Position in set)               '7/15'
'TSO2'                                              'Björk'
'TSOP' (Performer sort order)                       'Björk'
'TSRC' (ISRC (international standard recording code))  'GBBTF0100012/USEE10100734'
'TXXX:ASIN'                                         'B00006YXDR'
'TXXX:Acoustid Id'                                  '8626fd2b-9cb0-4551-8e45-2199ff7d6b7b'
'TXXX:Artists'                                      'Björk'
'TXXX:BARCODE'                                      '5016958049829'
'TXXX:CATALOGNUMBER'                                'TPLP359CD'
'TXXX:MusicBrainz Album Artist Id'                  '87c5dedd-371d-4a53-9f7f-80522fb7f3cb'
'TXXX:MusicBrainz Album Id'                         '99a3becc-087b-4c23-a7bd-0b5721cf098c'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '87c5dedd-371d-4a53-9f7f-80522fb7f3cb'
'TXXX:MusicBrainz Release Group Id'                 '07d2f772-531d-3d19-920a-72337891800d'
'TXXX:MusicBrainz Release Track Id'                 'c869d98e-8c1c-3631-b1e8-105131e9ca8e'
'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'                                  ['electronic', 'downtempo', 'trip hop']
'TXXX:lastfmtags'                                   ['female vocalists', 'alternative', 'icelandic', 'electronic', 'bjork']
'TXXX:originalyear'                                 '2002'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+8.47 dB'
'TXXX:replaygain_track_peak'                        '0.187625'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'66dd332c-d163-4dd6-8b3d-7f5900112e99')

========================== row from database ==========================
                                              'id'  1357526
                                            'path'  /data/Music/Bulk/00poprockelectronic/VA - Pitchfork - The Top 500 Tracks of the 2000s/227 - Björk - Pagan Poetry.mp3
                                         'working'  None
                                         'bitrate'  252
                                    'duration_sec'  314
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  10006876
                                           'mtime'  1620573288
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic VA Pitchfork The Top 500 Tracks of the 2000s 227 electronic generic or radio unsorted
                                      'tag_artist'  Björk
                                     'tag_release'  Greatest Hits
                                       'tag_title'  Pagan Poetry
                                             'bpm'  132.0
                                    'search_title'  'pagan':1 'poetry':2
                                   'search_artist'  'bjork':1,2
                                  'search_release'  'greatest':1 'hits':2
                                     'search_rest'  '00poprockelectronic':1 '2000s':9 '227':10 '500':6 'electronic':11 'generic':12 'of':8 'or':13 'pitchfork':3 'radio':14 'the':4 'top':5 'tracks':7 'unsorted':15 'va':2
                                    'search_combo'  '00poprockelectronic':7 '2000s':15 '227':16 '500':12 'bjork':3B,4B 'electronic':17 'generic':18 'greatest':5C 'hits':6C 'of':14 'or':19 'pagan':1A 'pitchfork':9 'poetry':2A 'radio':20 'the':10 'top':11 'tracks':13 'unsorted':21 'va':8
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['female vocalists', 'alternative', 'icelandic', 'electronic', 'bjork']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic', 'downtempo', 'trip hop']

============================== file details ==============================
                                           'mtime'  1620573288.3015912  (2021-05-09 17:14:48)
                             'size'  10006876