======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '245'
                                          'artist'  'Mike Oldfield'
                                     'text_people'  ''
                                         'release'  'Chillout Moods (disc 1)'
                                           'title'  'Tubular Bells'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', 'q-mixbeat-1', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  "['new age', 'instrumental', 'progressive rock', 'electronic', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted;set-pl-billboard'
                                             'bpm'  '98.454'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Chillout Moods (disc 1)'
'TBPM' (BPM (beats per minute))                     '98.454'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Tubular Bells'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mike Oldfield'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'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'                                   ['new age', 'instrumental', 'progressive rock', 'electronic', 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.71 dB'
'TXXX:replaygain_track_peak'                        '0.785618'

========================== row from database ==========================
                                              'id'  1355031
                                            'path'  /data/Music/Bulk/00poprockelectronic/Mike Oldfield/Mike Oldfield__MBZ;#Mike Oldfield;#Chillout Moods (disc 1);#01;#Tubular Bells.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  245
                                           'genre'  electronic-unsorted;set-pl-billboard
                                        'filesize'  5903327
                                           'mtime'  1678465098
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Oldfield__MBZ;#Mike Oldfield;#Chillout 1);#01;#Tubular electronic unsorted;set pl billboard
                                      'tag_artist'  Mike Oldfield
                                     'tag_release'  Chillout Moods (disc 1)
                                       'tag_title'  Tubular Bells
                                             'bpm'  98.454
                                    'search_title'  'bells':2 'tubular':1
                                   'search_artist'  'mike':1 'oldfield':2
                                  'search_release'  '1':5,6 'chillout':1 'disc':3,4 'moods':2
                                     'search_rest'  '00poprockelectronic':1 '01':13,16 '1':12,15 'billboard':24 'chillout':9,11 'electronic':18 'mbz':3,6 'mike':4,7 'oldfield':2,5,8,10 'pl':23 'set':20,22 'tubular':14,17 'unsorted':19,21
                                    'search_combo'  '00poprockelectronic':11 '01':23,26 '1':9C,10C,22,25 'bells':2A 'billboard':34 'chillout':5C,19,21 'disc':7C,8C 'electronic':28 'mbz':13,16 'mike':3B,14,17 'moods':6C 'oldfield':4B,12,15,18,20 'pl':33 'set':30,32 'tubular':1A,24,27 'unsorted':29,31
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', 'q-mixbeat-1', 'Q-PIANO-3']
                                      'lastfmtags'  ['new age', 'instrumental', 'progressive rock', 'electronic', 'ambient']
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678465097.5996263  (2023-03-10 17:18:17)
                             'size'  5903327