======================== unified (from filesystem) ========================
                                         'bitrate'  '241.379'
                                        'duration'  '194'
                                          'artist'  'Megadeth'
                                     'text_people'  ''
                                         'release'  'Greatest Hits: Back to The Start'
                                           'title'  "Skin O' My Teeth"
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['thrash', 'speed metal', 'thrash metal', 'metal', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '17'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-metal-trash'
                                             'bpm'  '131.584'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:http://www.cdtag.com:\x02\x00ñ\x1d"\x00'      PRIV(owner='http://www.cdtag.com', data=b'\x02\x00\xf1\x1d"\x00')
'TALB' (Album/Movie/Show title)                     'Greatest Hits: Back to The Start'
'TBPM' (BPM (beats per minute))                     '131.584'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-trash'
'TDRC' (Recording time)                             '2005-06-28'
'TIT2' (Title/songname/content description)         "Skin O' My Teeth"
'TKEY' (Initial key)                                '8A'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Megadeth'
'TPUB' (Publisher)                                  'Capitol'
'TRCK' (Track number/Position in set)               '15/17'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:Release type'                                 'Advance'
'TXXX:Rip date'                                     '2005-06-13'
'TXXX:Ripping tool'                                 'EAC'
'TXXX:Source'                                       'CD (LP)'
'TXXX:lastfmtags'                                   ['thrash', 'speed metal', 'thrash metal', 'metal', 'heavy metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.47 dB'
'TXXX:replaygain_track_peak'                        '0.400645'

========================== row from database ==========================
                                              'id'  1398369
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Megadeth/Greatest Hits, Back To The Start/15-megadeth-skin_o_my_teeth.mp3
                                         'working'  None
                                         'bitrate'  241
                                    'duration_sec'  194
                                           'genre'  eid-metal-trash
                                        'filesize'  5880204
                                           'mtime'  1620311616
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Hits, To 15 megadeth skin_o_my_teeth eid metal trash
                                      'tag_artist'  Megadeth
                                     'tag_release'  Greatest Hits: Back to The Start
                                       'tag_title'  Skin O' My Teeth
                                             'bpm'  131.584
                                    'search_title'  'my':4 'o':2,3 'skin':1 'teeth':5
                                   'search_artist'  'megadeth':1
                                  'search_release'  'back':4 'greatest':1 'hits':2,3 'start':7 'the':6 'to':5
                                     'search_rest'  '00dwimp':1 '00metal':2 'eid':11 'hits':3,4 'megadeth':6 'metal':12 'my':9 'o':8 'skin':7 'teeth':10 'to':5 'trash':13
                                    'search_combo'  '00dwimp':14 '00metal':15 'back':10C 'eid':24 'greatest':7C 'hits':8C,9C,16,17 'megadeth':6B,19 'metal':25 'my':4A,22 'o':2A,3A,21 'skin':1A,20 'start':13C 'teeth':5A,23 'the':12C 'to':11C,18 'trash':26
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['thrash', 'speed metal', 'thrash metal', 'metal', 'heavy metal']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620311616.3335962  (2021-05-06 16:33:36)
                             'size'  5880204