======================== unified (from filesystem) ========================
                                         'bitrate'  '147.711'
                                        'duration'  '278'
                                          'artist'  'Garbage'
                                     'text_people'  ''
                                         'release'  'Essential Chill Out'
                                           'title'  'Milk (The Classic Mix By Massi'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['90s', 'alternative', 'female vocalists', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '95.080'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Essential Chill Out'
'TBPM' (BPM (beats per minute))                     '95.080'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Milk (The Classic Mix By Massi'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Garbage'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['90s', 'alternative', 'female vocalists', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.96 dB'
'TXXX:replaygain_track_peak'                        '0.619388'

========================== row from database ==========================
                                              'id'  1417316
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Essential Chill Out/Garbage - 11 - Milk (The Classic Mix By Massi.mp3
                                         'working'  None
                                         'bitrate'  147
                                    'duration_sec'  278
                                           'genre'  rock-unsorted
                                        'filesize'  5135093
                                           'mtime'  1620388662
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 11 rock unsorted
                                      'tag_artist'  Garbage
                                     'tag_release'  Essential Chill Out
                                       'tag_title'  Milk (The Classic Mix By Massi
                                             'bpm'  95.08
                                    'search_title'  'by':6 'classic':4 'massi':7 'milk':1 'mix':5 'the':2,3
                                   'search_artist'  'garbage':1
                                  'search_release'  'chill':2 'essential':1 'out':3
                                     'search_rest'  '00poprockelectronic':1 'dance':3 'generic':2 'rock':5 'trapbeat':4 'unsorted':6
                                    'search_combo'  '00poprockelectronic':12 'by':6A 'chill':10C 'classic':4A 'dance':14 'essential':9C 'garbage':8B 'generic':13 'massi':7A 'milk':1A 'mix':5A 'out':11C 'rock':16 'the':2A,3A 'trapbeat':15 'unsorted':17
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['90s', 'alternative', 'female vocalists', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620388662.1610348  (2021-05-07 13:57:42)
                             'size'  5135093