<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '208'
                                          'artist'  'Red Hot Chili Peppers'
                                     'text_people'  ''
                                         'release'  'By the Way'
                                           'title'  'On Mercury'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'q-play-2', 'Q-JZFKS-2', 'Q-OLDST-3', 'q-chart-4', 'q-drums-3', 'q-other-2', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['alternative rock/funk rock/alternative/funk/rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '18'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-funk'
                                             'bpm'  '114.934'
                                             'key'  '10A'
                                        'acoustid'  'ffc0fbb2-d52e-468b-a437-ebb756524757'
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382dadc0>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1288953"/>
'COMM:ID3v1 Comment:XXX'                            'I Love Morgoth'
'TALB' (Album/Movie/Show title)                     'By the Way'
'TBPM' (BPM (beats per minute))                     '114.934'
'TCON' (Content type, a.k.a. Genre)                 'rock-funk'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2002-07-09'
'TIT2' (Title/songname/content description)         'On Mercury'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Red Hot Chili Peppers'
'TPE2' (Band/orchestra/accompaniment)               'Red Hot Chili Peppers'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '13/18'
'TSO2'                                              'Red Hot Chili Peppers'
'TSOP' (Performer sort order)                       'Red Hot Chili Peppers'
'TSRC' (ISRC (international standard recording code))  'USWB10201700'
'TXXX:ARTISTS'                                      'Red Hot Chili Peppers'
'TXXX:Acoustid Id'                                  'ffc0fbb2-d52e-468b-a437-ebb756524757'
'TXXX:MusicBrainz Album Artist Id'                  '8bfac288-ccc5-448d-9573-c33ea2aa5c30'
'TXXX:MusicBrainz Album Id'                         '10b79394-5839-43c4-a53c-61be4fb1a09b'
'TXXX:MusicBrainz Album Release Country'            'XW'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '8bfac288-ccc5-448d-9573-c33ea2aa5c30'
'TXXX:MusicBrainz Release Group Id'                 'bbf6eaa8-1340-35c8-9599-34056896ebab'
'TXXX:MusicBrainz Release Track Id'                 '55728826-d86f-3d06-940b-a62e3539a507'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   'alternative rock/funk rock/alternative/funk/rock'
'TXXX:originalyear'                                 '2001'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.58 dB'
'TXXX:replaygain_track_peak'                        '0.369533'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8889f843-aa29-42ae-9e79-19e48629b995')

========================== row from database ==========================
                                              'id'  1288953
                                            'path'  /data/Music/Bulk/00poprockelectronic/Red Hot Chilli Peppers/By the Way/Red Hot Chili Peppers - On Mercury - 13.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  208
                                           'genre'  rock-funk
                                        'filesize'  5089445
                                           'mtime'  1630253032
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Chilli 13 rock funk
                                      'tag_artist'  Red Hot Chili Peppers
                                     'tag_release'  By the Way
                                       'tag_title'  On Mercury
                                             'bpm'  114.934
                                    'search_title'  'mercury':2 'on':1
                                   'search_artist'  'chili':3 'hot':2 'peppers':4 'red':1
                                  'search_release'  'by':1 'the':2 'way':3
                                     'search_rest'  '00poprockelectronic':1 'chilli':2 'funk':4 'rock':3
                                    'search_combo'  '00poprockelectronic':10 'by':7C 'chili':5B 'chilli':11 'funk':13 'hot':4B 'mercury':2A 'on':1A 'peppers':6B 'red':3B 'rock':12 'the':8C 'way':9C
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock/funk rock/alternative/funk/rock']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1630253032.2572699  (2021-08-29 18:03:52)
                             'size'  5089445