======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '130'
                                          'artist'  'Alpinist'
                                     'text_people'  ''
                                         'release'  'Masakari Alpinist Split LP '
                                           'title'  'Postmodern Problems'
                                           '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-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['screamo', 'hardcore', 'neocrust', 'crust', 'dark hardcore']"
                                     'discogstags'  "['hardcore', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '14'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'eid-metal-crust'
                                             'bpm'  '124.087'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00004923 00003D19 0000A9CB 0000ADBC 0000BD7D 00010CE0 00008F6A 00008E03 '
 '00002F3E 000131B6')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000B1D 000000000057F653 00000000 004FB415 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Masakari Alpinist Split LP '
'TBPM' (BPM (beats per minute))                     '124.087'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-crust'
'TENC' (Encoded by)                                 'iTunes 10.2.1'
'TIT2' (Title/songname/content description)         'Postmodern Problems'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Alpinist'
'TRCK' (Track number/Position in set)               '4/14'
'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:discogstags'                                  ['hardcore', 'rock']
'TXXX:lastfmtags'                                   ['screamo', 'hardcore', 'neocrust', 'crust', 'dark hardcore']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.44 dB'
'TXXX:replaygain_track_peak'                        '0.331977'

========================== row from database ==========================
                                              'id'  1397350
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Alpinist - Masakari/Alpinist Masakari Split LP/04 - Alpinist - Postmodern Problems.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  130
                                           'genre'  eid-metal-crust
                                        'filesize'  5587429
                                           'mtime'  1620310491
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 04 eid metal crust
                                      'tag_artist'  Alpinist
                                     'tag_release'  Masakari Alpinist Split LP 
                                       'tag_title'  Postmodern Problems
                                             'bpm'  124.087
                                    'search_title'  'postmodern':1 'problems':2
                                   'search_artist'  'alpinist':1
                                  'search_release'  'alpinist':2 'lp':4 'masakari':1 'split':3
                                     'search_rest'  '00dwimp':1 '00metal':2 'crust':5 'eid':3 'metal':4
                                    'search_combo'  '00dwimp':8 '00metal':9 'alpinist':3B,5C 'crust':12 'eid':10 'lp':7C 'masakari':4C 'metal':11 'postmodern':1A 'problems':2A 'split':6C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', '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-4', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['screamo', 'hardcore', 'neocrust', 'crust', 'dark hardcore']
                                        'tag_date'  
                                     'discogstags'  ['hardcore', 'rock']

============================== file details ==============================
                                           'mtime'  1620310490.573436  (2021-05-06 16:14:50)
                             'size'  5587429