======================== unified (from filesystem) ========================
                                         'bitrate'  '176.542'
                                        'duration'  '239'
                                          'artist'  'The Dresden Dolls'
                                     'text_people'  'Amanda Palmer'
                                         'release'  'No, Virginia...'
                                           'title'  'The Sheep Song'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'Q-PLAY-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-4', 'q-chart-3', 'q-drums-3', 'q-other-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['punk cabaret', 'indie', 'cabaret', 'dark cabaret', 'dresden dolls']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter;ifs-songwriter-eos'
                                             'bpm'  '116.253'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '9D0B6D0B'
'COMM:ID3v1 Comment:XXX'                            '9D0B6D0B'
'TALB' (Album/Movie/Show title)                     'No, Virginia...'
'TBPM' (BPM (beats per minute))                     '116.253'
'TCOM' (Composer)                                   'Amanda Palmer'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter', 'ifs-songwriter-eos']
'TDRC' (Recording time)                             '2008-05-20'
'TIT2' (Title/songname/content description)         'The Sheep Song'
'TKEY' (Initial key)                                '9A'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'The Dresden Dolls'
'TPE2' (Band/orchestra/accompaniment)               'The Dresden Dolls'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Roadrunner'
'TRCK' (Track number/Position in set)               '10'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.82.01, External encoder lame.exe (%s %d -V2 --vbr-new) '
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Release type'                                 'Normal release'
'TXXX:Rip date'                                     '2008-04-29'
'TXXX:Ripping tool'                                 'EAC'
'TXXX:Source'                                       'CD'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['punk cabaret', 'indie', 'cabaret', 'dark cabaret', 'dresden dolls']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.63 dB'
'TXXX:replaygain_track_peak'                        '0.470478'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3N78Q153493854V789081A5E187E9CDA3EA08F650E232C5FDP5')

========================== row from database ==========================
                                              'id'  1363179
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Dresden Dolls & Amanda Palmer/No Virginia/10-dresden_dolls-the_sheep_song.mp3
                                         'working'  None
                                         'bitrate'  176
                                    'duration_sec'  239
                                           'genre'  ifs-songwriter;ifs-songwriter-eos
                                        'filesize'  5282177
                                           'mtime'  1636401360
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos & Amanda Palmer 10 dresden_dolls the_sheep_song ifs songwriter;ifs songwriter eos
                                      'tag_artist'  The Dresden Dolls
                                     'tag_release'  No, Virginia...
                                       'tag_title'  The Sheep Song
                                             'bpm'  116.253
                                    'search_title'  'sheep':2 'song':3 'the':1
                                   'search_artist'  'dolls':3 'dresden':2 'the':1
                                  'search_release'  'no':1,2 'virginia':3,4
                                     'search_rest'  '00singer':1 '00songwriter':4 'amanda':5 'dolls':8 'dresden':7 'eos':3 'ifs':12,14,16 'palmer':6 'sheep':10 'song':11 'songwriter':2,13,15 'the':9
                                    'search_combo'  '00singer':11 '00songwriter':14 'amanda':15 'dolls':6B,18 'dresden':5B,17 'eos':13 'ifs':22,24,26 'no':7C,8C 'palmer':16 'sheep':2A,20 'song':3A,21 'songwriter':12,23,25 'the':1A,4B,19 'virginia':9C,10C
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['punk cabaret', 'indie', 'cabaret', 'dark cabaret', 'dresden dolls']
                                        'tag_date'  2008
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636401360.485625  (2021-11-08 20:56:00)
                             'size'  5282177