======================== unified (from filesystem) ========================
                                         'bitrate'  '191.966'
                                        'duration'  '148'
                                          'artist'  'blink-182'
                                     'text_people'  ''
                                         'release'  'Enema of the State'
                                           'title'  "What's My Age Again?"
                                           'quals'  ("['Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['punk rock', 'pop punk', 'punk', 'alternative', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk-pop'
                                             'bpm'  '104.714'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'REPLAYGAINAPPLY'
'TALB' (Album/Movie/Show title)                     'Enema of the State'
'TBPM' (BPM (beats per minute))                     '104.714'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk-pop'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         "What's My Age Again?"
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'blink-182'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['punk rock', 'pop punk', 'punk', 'alternative', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.69 dB'
'TXXX:replaygain_track_peak'                        '0.381943'

========================== row from database ==========================
                                              'id'  1516008
                                            'path'  /data/Music/Bulk/00poprockelectronic/Blink 182/05-What_s My Age Again_.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  148
                                           'genre'  rock-gr-punk-pop
                                        'filesize'  3564949
                                           'mtime'  1620389335
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Blink 05 What_s Again_ rock gr punk pop
                                      'tag_artist'  blink-182
                                     'tag_release'  Enema of the State
                                       'tag_title'  What's My Age Again?
                                             'bpm'  104.714
                                    'search_title'  'again':6 'age':5 'my':4 's':2 'what':1 'whats':3
                                   'search_artist'  '182':2 'blink':1 'blink182':3
                                  'search_release'  'enema':1 'of':2 'state':4 'the':3
                                     'search_rest'  '00poprockelectronic':1 'again':5 'blink':2 'gr':7 'pop':9 'punk':8 'rock':6 's':4 'what':3
                                    'search_combo'  '00poprockelectronic':14 '182':8B 'again':6A,18 'age':5A 'blink':7B,15 'blink182':9B 'enema':10C 'gr':20 'my':4A 'of':11C 'pop':22 'punk':21 'rock':19 's':2A,17 'state':13C 'the':12C 'what':1A,16 'whats':3A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['punk rock', 'pop punk', 'punk', 'alternative', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620389335.0687888  (2021-05-07 14:08:55)
                             'size'  3564949