======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '227'
                                          'artist'  'Pink Floyd'
                                     'text_people'  ''
                                         'release'  'Pulse (disc 2)'
                                           'title'  'Brain Damage'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', 'q-chart-4', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  ("['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic "
 "rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '135.184'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Pulse (disc 2)'
'TBPM' (BPM (beats per minute))                     '135.184'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Brain Damage'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Pink Floyd'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.87 dB'
'TXXX:replaygain_track_peak'                        '0.609647'

========================== row from database ==========================
                                              'id'  1295038
                                            'path'  /data/Music/Bulk/00poprockelectronic/album top 1000/0152 Pink Floyd - Pulse (2 cd)/Pulse (disc 2)-09-Brain Damage.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  227
                                           'genre'  rock-unsorted
                                        'filesize'  9111082
                                           'mtime'  1620392544
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic album top 1000 0152 (2 cd) 09 rock unsorted
                                      'tag_artist'  Pink Floyd
                                     'tag_release'  Pulse (disc 2)
                                       'tag_title'  Brain Damage
                                             'bpm'  135.184
                                    'search_title'  'brain':1 'damage':2
                                   'search_artist'  'floyd':2 'pink':1
                                  'search_release'  '2':4,5 'disc':2,3 'pulse':1
                                     'search_rest'  '00poprockelectronic':1 '0152':5 '1000':4 '2':6,7 'album':2 'cd':8,9 'rock':10 'top':3 'unsorted':11
                                    'search_combo'  '00poprockelectronic':10 '0152':14 '1000':13 '2':8C,9C,15,16 'album':11 'brain':1A 'cd':17,18 'damage':2A 'disc':6C,7C 'floyd':4B 'pink':3B 'pulse':5C 'rock':19 'top':12 'unsorted':20
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620392544.2188056  (2021-05-07 15:02:24)
                             'size'  9111082