======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '284'
                                          'artist'  ''
                                     'text_people'  ''
                                         'release'  'radio jazz 13'
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-2', 'q-other-3', 'q-piano-4', 'q-vocals-1', "
 "'Q-MIXBEAT-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '99.7'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:\xad\x07\x00\x00'                PRIV(owner='AverageLevel', data=b'\xad\x07\x00\x00')
'PRIV:PeakValue:rc\x00\x00'                         PRIV(owner='PeakValue', data=b'rc\x00\x00')
'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '99.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TKEY' (Initial key)                                '7B'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.00 dB'
'TXXX:replaygain_track_peak'                        '0.776935'

========================== row from database ==========================
                                              'id'  1507721
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Modern Jazz Quartet - now_s the time .mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  284
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  11387214
                                           'mtime'  1620574514
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Modern Jazz Quartet now_s the time prerock jb unsorted
                                      'tag_artist'  None
                                     'tag_release'  radio jazz 13
                                       'tag_title'  None
                                             'bpm'  99.7
                                    'search_title'  None
                                   'search_artist'  None
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'jazz':3 'jb':10 'modern':2 'now':5 'prerock':9 'quartet':4 's':6 'the':7 'time':8 'unsorted':11
                                    'search_combo'  '00poprockelectronic':3 'jazz':2C,5 'jb':12 'modern':4 'now':7 'prerock':11 'quartet':6 'radio':1C 's':8 'the':9 'time':10 'unsorted':13
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-2', 'q-piano-4', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620574514.340271  (2021-05-09 17:35:14)
                             'size'  11387214