======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '118'
                                          'artist'  'Secret Mommy'
                                     'text_people'  ''
                                         'release'  'Mammal Class'
                                           'title'  'Parallel Parka'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-4', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electronica', 'glitch pop', 'glitch', 'idm', 'electronic', 'experimental']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-glitch;electronic-unsorted'
                                             'bpm'  '89.8'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Mammal Class'
'TBPM' (BPM (beats per minute))                     '89.8'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-glitch',
 'electronic-unsorted',
 'electronic-unsorted',
 'electronic-experimental-glitch']
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Parallel Parka'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Secret Mommy'
'TPE2' (Band/orchestra/accompaniment)               'Secret Mommy'
'TRCK' (Track number/Position in set)               '07'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf52.54.0'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '4'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'glitch pop', 'glitch', 'idm', 'electronic', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:release date'                                 '2004'
'TXXX:replaygain_track_gain'                        '-0.86 dB'
'TXXX:replaygain_track_peak'                        '0.602413'

========================== row from database ==========================
                                              'id'  973680
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Secret Mommy ‎– Mammal Class {Abstract, Electro, Experimental} [2004]/07 Parallel Parka.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  118
                                           'genre'  electronic-experimental-glitch;electronic-unsorted
                                        'filesize'  4807963
                                           'mtime'  1636136193
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm ‎– {Abstract, Electro, Experimental} [2004] 07 electronic experimental glitch;electronic unsorted
                                      'tag_artist'  Secret Mommy
                                     'tag_release'  Mammal Class
                                       'tag_title'  Parallel Parka
                                             'bpm'  89.8
                                    'search_title'  'parallel':1 'parka':2
                                   'search_artist'  'mommy':2 'secret':1
                                  'search_release'  'class':2 'mammal':1
                                     'search_rest'  '2004':6,7 'abstract':1,2 'electro':3,4 'electronic':8,11,13 'experimental':5,9 'glitch':10,12 'unsorted':14
                                    'search_combo'  '2004':12,13 'abstract':7,8 'class':6C 'electro':9,10 'electronic':14,17,19 'experimental':11,15 'glitch':16,18 'mammal':5C 'mommy':4B 'parallel':1A 'parka':2A 'secret':3B 'unsorted':20
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-4', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'glitch pop', 'glitch', 'idm', 'electronic', 'experimental']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636136193.2447526  (2021-11-05 19:16:33)
                             'size'  4807963