======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '232'
                                          'artist'  'The Backstreet Boys'
                                     'text_people'  ''
                                         'release'  "100 Hits Of The 90's Disc 1"
                                           'title'  'Quit Playing Games (With My Heart)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-3', 'q-drums-4', 'q-other-2', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['pop', 'boybands', '90s', 'dance', 'backstreet boys']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;set-pl-billboard'
                                             'bpm'  '100.009'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "100 Hits Of The 90's Disc 1"
'TBPM' (BPM (beats per minute))                     '100.009'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1995'
'TENC' (Encoded by)                                 'Black1000'
'TIT2' (Title/songname/content description)         'Quit Playing Games (With My Heart)'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Backstreet Boys'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['pop', 'boybands', '90s', 'dance', 'backstreet boys']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.55 dB'
'TXXX:replaygain_track_peak'                        '0.461546'

========================== row from database ==========================
                                              'id'  1325274
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/09 - The Backstreet Boys - Quit Playing Games (With My Heart).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  232
                                           'genre'  electronic-generic or radio-unsorted;set-pl-billboard
                                        'filesize'  5592695
                                           'mtime'  1621696025
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 09 electronic generic or radio unsorted;set pl billboard
                                      'tag_artist'  The Backstreet Boys
                                     'tag_release'  100 Hits Of The 90's Disc 1
                                       'tag_title'  Quit Playing Games (With My Heart)
                                             'bpm'  100.009
                                    'search_title'  'games':3 'heart':7,8 'my':6 'playing':2 'quit':1 'with':4,5
                                   'search_artist'  'backstreet':2 'boys':3 'the':1
                                  'search_release'  '1':9 '100':1 '90':5 '90s':7 'disc':8 'hits':2 'of':3 's':6 'the':4
                                     'search_rest'  '00poprockelectronic':1 '90s':2 'billboard':12 'electronic':3 'generic':4 'or':5 'pl':11 'radio':6 'set':8,10 'unsorted':7,9
                                    'search_combo'  '00poprockelectronic':21 '1':20C '100':12C '90':16C '90s':18C,22 'backstreet':10B 'billboard':32 'boys':11B 'disc':19C 'electronic':23 'games':3A 'generic':24 'heart':7A,8A 'hits':13C 'my':6A 'of':14C 'or':25 'pl':31 'playing':2A 'quit':1A 'radio':26 's':17C 'set':28,30 'the':9B,15C 'unsorted':27,29 'with':4A,5A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'boybands', '90s', 'dance', 'backstreet boys']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696024.6164575  (2021-05-22 17:07:04)
                             'size'  5592695