<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '217'
                                          'artist'  'EELS'
                                     'text_people'  ''
                                         'release'  'Daisies of the Galaxy'
                                           'title'  'Grace Kelly Blues'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-4', 'q-drums-3', 'q-other-3', "
 "'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['indie/alternative/singer songwriter/indie rock/rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '15'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '84.070'
                                             'key'  '7B'
                                        'acoustid'  '8e2bbab2-8f9e-424d-8706-fe9f75907a16'
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382da9a0>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1302040"/>
'TALB' (Album/Movie/Show title)                     'Daisies of the Galaxy'
'TBPM' (BPM (beats per minute))                     '84.070'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '2000-02-29'
'TIPL' (Involved people list)                       TIPL(encoding=&lt;Encoding.UTF16: 1&gt;, people=[['engineer', 'Wally Gagel'], ['producer', 'E']])
'TIT2' (Title/songname/content description)         'Grace Kelly Blues'
'TKEY' (Initial key)                                '7B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'EELS'
'TPE2' (Band/orchestra/accompaniment)               'EELS'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '1/15'
'TSO2'                                              'EELS'
'TSOP' (Performer sort order)                       'EELS'
'TSRC' (ISRC (international standard recording code))  'USDW10021635'
'TXXX:ARTISTS'                                      'EELS'
'TXXX:Acoustid Id'                                  '8e2bbab2-8f9e-424d-8706-fe9f75907a16'
'TXXX:BARCODE'                                      '600445021822'
'TXXX:MusicBrainz Album Artist Id'                  '14387b0f-765c-4852-852f-135335790466'
'TXXX:MusicBrainz Album Id'                         '6f9e6139-05c3-3f8c-af2b-d46abfa2d620'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '14387b0f-765c-4852-852f-135335790466'
'TXXX:MusicBrainz Release Group Id'                 'ea5f23b9-55b0-3838-b25f-88a9eaf4addb'
'TXXX:MusicBrainz Release Track Id'                 'b5176c44-8a18-3ab2-bc75-8c20f28bbfbe'
'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:lastfmtags'                                   'indie/alternative/singer songwriter/indie rock/rock'
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.47 dB'
'TXXX:replaygain_track_peak'                        '0.644399'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'98f7e583-8fe4-4ee1-9406-11384c908199')

========================== row from database ==========================
                                              'id'  1302040
                                            'path'  /data/Music/Bulk/00poprockelectronic/Eels/Daisies of the Galaxy/Eels - Grace Kelly Blues.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  217
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  3577340
                                           'mtime'  1621698097
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Eels Eels ifs songwriter indie rock
                                      'tag_artist'  EELS
                                     'tag_release'  Daisies of the Galaxy
                                       'tag_title'  Grace Kelly Blues
                                             'bpm'  84.07
                                    'search_title'  'blues':3 'grace':1 'kelly':2
                                   'search_artist'  'eels':1
                                  'search_release'  'daisies':1 'galaxy':4 'of':2 'the':3
                                     'search_rest'  '00poprockelectronic':1 'eels':2 'ifs':3 'indie':5 'rock':6 'songwriter':4
                                    'search_combo'  '00poprockelectronic':9 'blues':3A 'daisies':5C 'eels':4B,10 'galaxy':8C 'grace':1A 'ifs':11 'indie':13 'kelly':2A 'of':6C 'rock':14 'songwriter':12 'the':7C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-JZFKS-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie/alternative/singer songwriter/indie rock/rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698097.4723318  (2021-05-22 17:41:37)
                             'size'  3577340