<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '134'
                                          'artist'  'Lowell George &amp; The Factory'
                                     'text_people'  ''
                                         'release'  'Lightning-Rod Man'
                                           'title'  'Lowell George &amp; The Factory- Candy Cane Madness (Live Version)'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'q-syn-1', "
 "'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', "
 "'q-other-3', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  ("['psychedelic', 'psychedelic rock', 'classic rock', 'garage rock', 'folk "
 "rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '15'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '102.127'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f9537d759d0>

'COMM::eng'                                         ['0',
 ' 00000000 00000210 00000984 00000000005A606C 00000000 003121F6 00000000 '
 '00000000 00000000 00000000 00000000 00000000']
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunes_CDDB_IDs:eng'                          '15+6E042C3038BCCC592ACD2A5D9CB1B786+482851'
'PRIV:AverageLevel:{\x19\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x19\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Lightning-Rod Man'
'TBPM' (BPM (beats per minute))                     '102.127'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TDRC' (Recording time)                             '2005'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Lowell George &amp; The Factory- Candy Cane Madness (Live Version)'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Lowell George &amp; The Factory'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '11/15'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['psychedelic', 'psychedelic rock', 'classic rock', 'garage rock', 'folk rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.36 dB'
'TXXX:replaygain_track_peak'                        '0.461239'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3N28S7842917V18504729AEF80692A46F2CE989674C32A5P5\x00')

========================== row from database ==========================
                                              'id'  735762
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Lowell George & The Factory - Candy Cane Madness (live in studio).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  134
                                           'genre'  set-th-candy
                                        'filesize'  3227223
                                           'mtime'  1620343120
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets (live studio) set th candy
                                      'tag_artist'  Lowell George & The Factory
                                     'tag_release'  Lightning-Rod Man
                                       'tag_title'  Lowell George & The Factory- Candy Cane Madness (Live Version)
                                             'bpm'  102.127
                                    'search_title'  'candy':6 'cane':7 'factory':4,5 'george':2 'live':9,10 'lowell':1 'madness':8 'the':3 'version':11,12
                                   'search_artist'  'factory':4 'george':2 'lowell':1 'the':3
                                  'search_release'  'lightning':1 'lightningrod':3 'man':4 'rod':2
                                     'search_rest'  'candy':12 'country':4 'exotica':2 'jazz':1 'live':6,7 'oldies':3 'set':10 'studio':8,9 'sweets':5 'th':11
                                    'search_combo'  'candy':6A,32 'cane':7A 'country':24 'exotica':22 'factory':4A,5A,16B 'george':2A,14B 'jazz':21 'lightning':17C 'lightningrod':19C 'live':9A,10A,26,27 'lowell':1A,13B 'madness':8A 'man':20C 'oldies':23 'rod':18C 'set':30 'studio':28,29 'sweets':25 'th':31 'the':3A,15B 'version':11A,12A
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['psychedelic', 'psychedelic rock', 'classic rock', 'garage rock', 'folk rock']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343119.7249045  (2021-05-07 01:18:39)
                             'size'  3227223