<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '208.341'
                                        'duration'  '288'
                                          'artist'  'Bruce Springsteen &amp; The E Street Band'
                                     'text_people'  ''
                                         'release'  'Greatest Hits'
                                           'title'  'Thunder Road'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-vocals-3', 'q-mixbeat-2', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  ("['live', 'guitar', 'bruce springsteen', 'rock', 'singer songwriter', "
 "'classic rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '94.591'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f9537d751c0>

'TALB' (Album/Movie/Show title)                     'Greatest Hits'
'TBPM' (BPM (beats per minute))                     '94.591'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TIT2' (Title/songname/content description)         'Thunder Road'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bruce Springsteen &amp; The E Street Band'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['live',
 'guitar',
 'bruce springsteen',
 'rock',
 'singer songwriter',
 'classic rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+6.09 dB'
'TXXX:replaygain_track_peak'                        '0.240650'

========================== row from database ==========================
                                              'id'  1491558
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/Bruce Springsteen - Greatest Hits - 02 - Thunder Road.mp3
                                         'working'  None
                                         'bitrate'  208
                                    'duration_sec'  288
                                           'genre'  rock-cppex
                                        'filesize'  7525694
                                           'mtime'  1676052923
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch 02 rock cppex
                                      'tag_artist'  Bruce Springsteen & The E Street Band
                                     'tag_release'  Greatest Hits
                                       'tag_title'  Thunder Road
                                             'bpm'  94.591
                                    'search_title'  'road':2 'thunder':1
                                   'search_artist'  'band':6 'bruce':1 'e':4 'springsteen':2 'street':5 'the':3
                                  'search_release'  'greatest':1 'hits':2
                                     'search_rest'  '00dutch':4 '00mid':1 'cppex':6 'europe':3 'north':2 'rock':5
                                    'search_combo'  '00dutch':14 '00mid':11 'band':8B 'bruce':3B 'cppex':16 'e':6B 'europe':13 'greatest':9C 'hits':10C 'north':12 'road':2A 'rock':15 'springsteen':4B 'street':7B 'the':5B 'thunder':1A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', 'q-other-3', 'q-vocals-3', 'q-mixbeat-2', 'Q-PIANO-3']
                                      'lastfmtags'  ['live', 'guitar', 'bruce springsteen', 'rock', 'singer songwriter', 'classic rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676052923.058604  (2023-02-10 19:15:23)
                             'size'  7525694