======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '34'
                                          'artist'  'Descendents'
                                     'text_people'  'Bill Stevenson/Stephen Egerton'
                                         'release'  'Punk O Rama Vol. 2'
                                           'title'  'Coffee Mug'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['punk rock', 'pop punk', 'punk', 'hardcore punk', 'hardcore']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '137.2'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'PRIV:WM/WMCollectionID:\x18M\x8eaA\xa0èF¯\x89èaà\x13Ò\x08'  PRIV(owner='WM/WMCollectionID', data=b'\x18M\x8eaA\xa0\xe8F\xaf\x89\xe8a\xe0\x13\xd2\x08')
'PRIV:WM/WMContentID:þU\x9a7"`ÖJ¯\x06|Z_i«l'        PRIV(owner='WM/WMContentID', data=b'\xfeU\x9a7"`\xd6J\xaf\x06|Z_i\xabl')
'TALB' (Album/Movie/Show title)                     'Punk O Rama Vol. 2'
'TBPM' (BPM (beats per minute))                     '137.2'
'TCMP'                                              '1'
'TCOM' (Composer)                                   'Bill Stevenson/Stephen Egerton'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Coffee Mug'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Descendents'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Epitaph'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'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', 'hardcore punk', 'hardcore']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.70 dB'
'TXXX:replaygain_track_peak'                        '0.462614'

========================== row from database ==========================
                                              'id'  1476750
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/Pennywise - Epitaph/Punk-o-Rama Vol. 2/03 - Descendents - Coffee Mug.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  34
                                           'genre'  rock-gr-punk
                                        'filesize'  1353872
                                           'mtime'  1622659065
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner Pennywise Epitaph 03 rock gr punk
                                      'tag_artist'  Descendents
                                     'tag_release'  Punk O Rama Vol. 2
                                       'tag_title'  Coffee Mug
                                             'bpm'  137.2
                                    'search_title'  'coffee':1 'mug':2
                                   'search_artist'  'descendents':1
                                  'search_release'  '2':6 'o':2 'punk':1 'rama':3 'vol':4,5
                                     'search_rest'  'epitaph':6 'garage':2 'gr':8 'pennywise':5 'punk':1 'rock':7 'stoner':4 'surf':3
                                    'search_combo'  '2':9C 'coffee':1A 'descendents':3B 'epitaph':15 'garage':11 'gr':17 'mug':2A 'o':5C 'pennywise':14 'punk':4C,10 'rama':6C 'rock':16 'stoner':13 'surf':12 'vol':7C,8C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', '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-HAP-3', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['punk rock', 'pop punk', 'punk', 'hardcore punk', 'hardcore']
                                        'tag_date'  1996
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1622659065.2591114  (2021-06-02 20:37:45)
                             'size'  1353872