======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '125'
                                          'artist'  'Masakari'
                                     'text_people'  ''
                                         'release'  'Eden Compromised 7"'
                                           'title'  'IV - Egoism in Harvest'
                                           '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-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['hardcore', 'neocrust', 'crust', 'dark hardcore', 'crust punk']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '7'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'eid-metal-crust'
                                             'bpm'  '132.966'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000F1D 000015F5 00004CD5 0000797B 000170E0 000170E0 0000849D 0000854F '
 '0000E26D 00004CBC')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000774 000000000054BDFC 00000000 003D6A73 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            '1D020D04+39583+4+150+10317+19728+30138'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '4'
'TALB' (Album/Movie/Show title)                     'Eden Compromised 7"'
'TBPM' (BPM (beats per minute))                     '132.966'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-crust'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'IV - Egoism in Harvest'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Masakari'
'TPE2' (Band/orchestra/accompaniment)               'Masakari'
'TRCK' (Track number/Position in set)               '6/7'
'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'                                  'rock'
'TXXX:lastfmtags'                                   ['hardcore', 'neocrust', 'crust', 'dark hardcore', 'crust punk']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.22 dB'
'TXXX:replaygain_track_peak'                        '0.436161'

========================== row from database ==========================
                                              'id'  1391031
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Alpinist - Masakari/04 - IV - Egoism in Harvest.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  125
                                           'genre'  eid-metal-crust
                                        'filesize'  8958735
                                           'mtime'  1620310478
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Alpinist 04 eid metal crust
                                      'tag_artist'  Masakari
                                     'tag_release'  Eden Compromised 7"
                                       'tag_title'  IV - Egoism in Harvest
                                             'bpm'  132.966
                                    'search_title'  'egoism':2 'harvest':4 'in':3 'iv':1
                                   'search_artist'  'masakari':1
                                  'search_release'  '7':3 'compromised':2 'eden':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'alpinist':3 'crust':6 'eid':4 'metal':5
                                    'search_combo'  '00dwimp':9 '00metal':10 '7':8C 'alpinist':11 'compromised':7C 'crust':14 'eden':6C 'egoism':2A 'eid':12 'harvest':4A 'in':3A 'iv':1A 'masakari':5B 'metal':13
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  5A
                                           '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-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['hardcore', 'neocrust', 'crust', 'dark hardcore', 'crust punk']
                                        'tag_date'  2009
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310478.1684444  (2021-05-06 16:14:38)
                             'size'  8958735