======================== unified (from filesystem) ========================
                                         'bitrate'  '244.453'
                                        'duration'  '351'
                                          'artist'  'Don Dellpiero'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Facing The Ultimate Challenge'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-we-synthwave or chillwave or retrowave'
                                             'bpm'  '139.9'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '139.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-synthwave or chillwave or retrowave'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Facing The Ultimate Challenge'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Don Dellpiero'
'TRCK' (Track number/Position in set)               '17'
'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:Software'                                     'Lavf58.2.100'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.56 dB'
'TXXX:replaygain_track_peak'                        '0.628680'

========================== row from database ==========================
                                              'id'  1292289
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00synthwave/Don Dellpiero - Synthwave/Don Dellpiero - Facing The Ultimate Challenge.mp3
                                         'working'  None
                                         'bitrate'  244
                                    'duration_sec'  351
                                           'genre'  electronic-we-synthwave or chillwave or retrowave
                                        'filesize'  10755850
                                           'mtime'  1620608821
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00synthwave Synthwave electronic we synthwave or chillwave or retrowave
                                      'tag_artist'  Don Dellpiero
                                     'tag_release'  None
                                       'tag_title'  Facing The Ultimate Challenge
                                             'bpm'  139.9
                                    'search_title'  'challenge':4 'facing':1 'the':2 'ultimate':3
                                   'search_artist'  'dellpiero':2 'don':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '00synthwave':4 'chillwave':9 'disco':3 'electronic':6 'or':8 'retrowave':10 'synthwave':5 'waves':2 'we':7
                                    'search_combo'  '00poprockelectronic':7 '00synthwave':10 'challenge':4A 'chillwave':15 'dellpiero':6B 'disco':9 'don':5B 'electronic':12 'facing':1A 'or':14 'retrowave':16 'synthwave':11 'the':2A 'ultimate':3A 'waves':8 'we':13
                                    'tag_tracknum'  17
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620608820.5975695  (2021-05-10 03:07:00)
                             'size'  10755850