======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '537'
                                          'artist'  'Yes'
                                     'text_people'  ''
                                         'release'  'The Yes Album'
                                           'title'  'Perpetual Change'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['rock', 'progressive rock', 'british', 'progressive', 'classic rock']"
                                     'discogstags'  "['rock', 'prog rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '9'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '140'
                                             'key'  '4A'
                                        'acoustid'  '1e660811-0648-4461-bfe2-bd3cd9f7705c'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Yes Album'
'TBPM' (BPM (beats per minute))                     '140'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDOR' (Original release time)                      '1971'
'TDRC' (Recording time)                             '2003-01-14'
'TIT2' (Title/songname/content description)         'Perpetual Change'
'TKEY' (Initial key)                                '4A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Yes'
'TPE2' (Band/orchestra/accompaniment)               'Yes'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Rhino/Elektra Entertainment'
'TRCK' (Track number/Position in set)               '6/9'
'TSO2'                                              'Yes'
'TSOP' (Performer sort order)                       'Yes'
'TSRC' (ISRC (international standard recording code))  'USEE10251881/USEW29400009'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.83.01, BladeEnc dll 0.94, 192 Kbit/s, Stereo'
'TXXX:ASIN'                                         'B00007KWHN'
'TXXX:Acoustid Id'                                  '1e660811-0648-4461-bfe2-bd3cd9f7705c'
'TXXX:Artists'                                      'Yes'
'TXXX:BARCODE'                                      '081227378820'
'TXXX:CATALOGNUMBER'                                '8122-73788-2/R2 73788'
'TXXX:MusicBrainz Album Artist Id'                  'c1d4f2ba-cf39-460c-9528-6b827d3417a1'
'TXXX:MusicBrainz Album Id'                         '7076e5b3-2cf9-46fc-9fed-791095036b2c'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'c1d4f2ba-cf39-460c-9528-6b827d3417a1'
'TXXX:MusicBrainz Release Group Id'                 '0fa03925-736c-3537-b0c6-201091543177'
'TXXX:MusicBrainz Release Track Id'                 'a1dfcf91-9453-3309-844a-8b7d9ae058a5'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'prog rock']
'TXXX:lastfmtags'                                   ['rock', 'progressive rock', 'british', 'progressive', 'classic rock']
'TXXX:originalyear'                                 '1971'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.11 dB'
'TXXX:replaygain_track_peak'                        '0.501750'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'88b170f5-f24c-47d7-a220-9781a5c27a28')

========================== row from database ==========================
                                              'id'  1330473
                                            'path'  /data/Music/Bulk/00poprockelectronic/Yes/06 Perpetual Change.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  537
                                           'genre'  rock-cppex
                                        'filesize'  12977546
                                           'mtime'  1620737455
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 06 rock cppex
                                      'tag_artist'  Yes
                                     'tag_release'  The Yes Album
                                       'tag_title'  Perpetual Change
                                             'bpm'  140.0
                                    'search_title'  'change':2 'perpetual':1
                                   'search_artist'  'yes':1
                                  'search_release'  'album':3 'the':1 'yes':2
                                     'search_rest'  '00poprockelectronic':1 'cppex':3 'rock':2
                                    'search_combo'  '00poprockelectronic':7 'album':6C 'change':2A 'cppex':9 'perpetual':1A 'rock':8 'the':4C 'yes':3B,5C
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'progressive rock', 'british', 'progressive', 'classic rock']
                                        'tag_date'  2003
                                     'discogstags'  ['rock', 'prog rock']

============================== file details ==============================
                                           'mtime'  1620737454.6350267  (2021-05-11 14:50:54)
                             'size'  12977546