======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '299'
                                          'artist'  'ceephax'
                                     'text_people'  ''
                                         'release'  '(CAT 186 CD) volume two'
                                           'title'  'scary pollution'
                                           'quals'  ("['Q-HAP-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-2', 'q-busy-4', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['acid', 'electronic', 'breakcore', 'techno', 'idm']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-glitch-breakcore'
                                             'bpm'  '131.243'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 0000025A 0000016F 00005CC3'
'COMM:iTunNORM:eng'                                 (' 0000025A 0000016F 00005CC3 00003851 00042C78 00042C78 00007D8D 00007445 '
 '000316D0 0001314E')
'TALB' (Album/Movie/Show title)                     '(CAT 186 CD) volume two'
'TBPM' (BPM (beats per minute))                     '131.243'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-glitch-breakcore'
'TDRC' (Recording time)                             '2007'
'TENC' (Encoded by)                                 'iTunes v4.5'
'TIT2' (Title/songname/content description)         'scary pollution'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'ceephax'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['acid', 'electronic', 'breakcore', 'techno', 'idm']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.36 dB'
'TXXX:replaygain_track_peak'                        '0.826769'

========================== row from database ==========================
                                              'id'  1294883
                                            'path'  /data/Music/Bulk/00poprockelectronic/Ceephax/ceephax - volume two/ceephax - volume two - 03 - scary pollution.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  299
                                           'genre'  electronic-experimental-glitch-breakcore
                                        'filesize'  9655778
                                           'mtime'  1621638004
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Ceephax 03 electronic experimental glitch breakcore
                                      'tag_artist'  ceephax
                                     'tag_release'  (CAT 186 CD) volume two
                                       'tag_title'  scary pollution
                                             'bpm'  131.243
                                    'search_title'  'pollution':2 'scary':1
                                   'search_artist'  'ceephax':1
                                  'search_release'  '186':3 'cat':1,2 'cd':4,5 'two':7 'volume':6
                                     'search_rest'  '00poprockelectronic':1 'breakcore':6 'ceephax':2 'electronic':3 'experimental':4 'glitch':5
                                    'search_combo'  '00poprockelectronic':11 '186':6C 'breakcore':16 'cat':4C,5C 'cd':7C,8C 'ceephax':3B,12 'electronic':13 'experimental':14 'glitch':15 'pollution':2A 'scary':1A 'two':10C 'volume':9C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['acid', 'electronic', 'breakcore', 'techno', 'idm']
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621638004.4517138  (2021-05-22 01:00:04)
                             'size'  9655778