======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '257'
                                          'artist'  'The Offspring'
                                     'text_people'  'The Offspring'
                                         'release'  'Greatest Hits'
                                           'title'  'Self Esteem'
                                           'quals'  ("['Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'punk rock', 'punk', 'alternative', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'punk', 'pop punk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;rock-gr-punk'
                                             'bpm'  '106.587'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Greatest Hits'
'TBPM' (BPM (beats per minute))                     '106.587'
'TCOM' (Composer)                                   'The Offspring'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'rock-gr-punk']
'TDRC' (Recording time)                             '1995'
'TENC' (Encoded by)                                 'Winamp 5.541'
'TIT2' (Title/songname/content description)         'Self Esteem'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Offspring'
'TPE2' (Band/orchestra/accompaniment)               'The Offspring'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sony'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'punk', 'pop punk']
'TXXX:lastfmtags'                                   ['alternative rock', 'punk rock', 'punk', 'alternative', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.88 dB'
'TXXX:replaygain_track_peak'                        '0.316408'

========================== row from database ==========================
                                              'id'  1317216
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/051 - The Offspring - Self Esteem.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  257
                                           'genre'  electronic-generic or radio-unsorted;rock-gr-punk
                                        'filesize'  10318324
                                           'mtime'  1620389166
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 051 electronic generic or radio unsorted;rock gr punk
                                      'tag_artist'  The Offspring
                                     'tag_release'  Greatest Hits
                                       'tag_title'  Self Esteem
                                             'bpm'  106.587
                                    'search_title'  'esteem':2 'self':1
                                   'search_artist'  'offspring':2 'the':1
                                  'search_release'  'greatest':1 'hits':2
                                     'search_rest'  '00poprockelectronic':1 '90s':2 'electronic':3 'generic':4 'gr':11 'or':5 'punk':12 'radio':6 'rock':8,10 'unsorted':7,9
                                    'search_combo'  '00poprockelectronic':7 '90s':8 'electronic':9 'esteem':2A 'generic':10 'gr':17 'greatest':5C 'hits':6C 'offspring':4B 'or':11 'punk':18 'radio':12 'rock':14,16 'self':1A 'the':3B 'unsorted':13,15
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           '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-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'punk rock', 'punk', 'alternative', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  ['rock', 'alternative rock', 'punk', 'pop punk']

============================== file details ==============================
                                           'mtime'  1620389166.2233663  (2021-05-07 14:06:06)
                             'size'  10318324