======================== unified (from filesystem) ========================
                                         'bitrate'  '222.561'
                                        'duration'  '270'
                                          'artist'  'My Chemical Romance'
                                     'text_people'  ''
                                         'release'  'Danger Days: The True Lives Of The Fabulous Killjoys'
                                           'title'  'Sing'
                                           'quals'  ("['Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative', 'emo', 'punk', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '15'
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '110.967'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:http://www.cdtag.com:\x02\x00Þ(q\x00'         PRIV(owner='http://www.cdtag.com', data=b'\x02\x00\xde(q\x00')
'TALB' (Album/Movie/Show title)                     'Danger Days: The True Lives Of The Fabulous Killjoys'
'TBPM' (BPM (beats per minute))                     '110.967'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2010-11-22'
'TIT2' (Title/songname/content description)         'Sing'
'TKEY' (Initial key)                                '9A'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'My Chemical Romance'
'TPE2' (Band/orchestra/accompaniment)               'My Chemical Romance'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Reprise Records'
'TRCK' (Track number/Position in set)               '4/15'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME v3.97'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Release type'                                 'Normal release'
'TXXX:Rip date'                                     '2010-11-17'
'TXXX:Ripping tool'                                 'EAC V0.99 prebeta 4'
'TXXX:Source'                                       'CD'
'TXXX:discogstags'                                  ['rock', 'alternative rock']
'TXXX:lastfmtags'                                   ['alternative', 'emo', 'punk', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                        '-0.43 dB'
'TXXX:replaygain_track_peak'                        '0.362648'

========================== row from database ==========================
                                              'id'  1421855
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/My Chemical Romance/04 Sing.mp3
                                         'working'  None
                                         'bitrate'  222
                                    'duration_sec'  270
                                           'genre'  rock-unsorted
                                        'filesize'  7837353
                                           'mtime'  1620388950
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 04 rock unsorted
                                      'tag_artist'  My Chemical Romance
                                     'tag_release'  Danger Days: The True Lives Of The Fabulous Killjoys
                                       'tag_title'  Sing
                                             'bpm'  110.967
                                    'search_title'  'sing':1
                                   'search_artist'  'chemical':2 'my':1 'romance':3
                                  'search_release'  'danger':1 'days':2,3 'fabulous':8 'killjoys':9 'lives':6 'of':7 'the':4 'true':5
                                     'search_rest'  '00poprockelectronic':1 'indierock':3 'poprock':2 'rock':4 'unsorted':5
                                    'search_combo'  '00poprockelectronic':14 'chemical':3B 'danger':5C 'days':6C,7C 'fabulous':12C 'indierock':16 'killjoys':13C 'lives':10C 'my':2B 'of':11C 'poprock':15 'rock':17 'romance':4B 'sing':1A 'the':8C 'true':9C 'unsorted':18
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  9A
                                           '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-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative', 'emo', 'punk', 'rock']
                                        'tag_date'  2010
                                     'discogstags'  ['rock', 'alternative rock']

============================== file details ==============================
                                           'mtime'  1620388949.8838198  (2021-05-07 14:02:29)
                             'size'  7837353