======================== unified (from filesystem) ========================
                                         'bitrate'  '221.005'
                                        'duration'  '776'
                                          'artist'  'Aube'
                                     'text_people'  ''
                                         'release'  'Comet'
                                           'title'  'Mass'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-3', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dark ambient', 'noise', 'japanoise', 'experimental', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-glitch;set-pl-sced'
                                             'bpm'  '110.2'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 0000098B 00000933 00008A3F 00008E3A 0007C7FB 0007C812 000060C5 00006AF4 '
 '0001EA8E 000AA76A')
'TALB' (Album/Movie/Show title)                     'Comet'
'TBPM' (BPM (beats per minute))                     '110.2'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-glitch', 'set-pl-sced']
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Mass'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Aube'
'TPE2' (Band/orchestra/accompaniment)               'Aube'
'TPOS' (Part of a set)                              '1/2'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dark ambient', 'noise', 'japanoise', 'experimental', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.15 dB'
'TXXX:replaygain_track_peak'                        '0.442909'

========================== row from database ==========================
                                              'id'  292612
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Aube/[2006] Comet/1-03 Mass.mp3
                                         'working'  None
                                         'bitrate'  221
                                    'duration_sec'  776
                                           'genre'  electronic-experimental-glitch;set-pl-sced
                                        'filesize'  21465522
                                           'mtime'  1636909778
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm [2006] 1 03 electronic experimental glitch;set pl sced
                                      'tag_artist'  Aube
                                     'tag_release'  Comet
                                       'tag_title'  Mass
                                             'bpm'  110.2
                                    'search_title'  'mass':1
                                   'search_artist'  'aube':1
                                  'search_release'  'comet':1
                                     'search_rest'  '1':3 '2006':1,2 'electronic':4 'experimental':5 'glitch':6,8 'pl':10 'sced':11 'set':7,9
                                    'search_combo'  '1':6 '2006':4,5 'aube':2B 'comet':3C 'electronic':7 'experimental':8 'glitch':9,11 'mass':1A 'pl':13 'sced':14 'set':10,12
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['dark ambient', 'noise', 'japanoise', 'experimental', 'ambient']
                                        'tag_date'  2006
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636909778.1284473  (2021-11-14 18:09:38)
                             'size'  21465522