======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '252'
                                          'artist'  'Milli Vanilli'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1'
                                           'title'  "Girl You Know It's True"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-2', 'Q-LOCALNESS-2', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'german', 'hip hop', 'pop', 'rnb']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  ('electronic-generic or radio-unsorted;hip hop or rnb or rap or '
 'turntablism;set-pl-billboard')
                                             'bpm'  '129.979'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1'
'TBPM' (BPM (beats per minute))                     '129.979'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted',
 'hip hop or rnb or rap or turntablism',
 'set-pl-billboard']
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         "Girl You Know It's True"
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Milli Vanilli'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'german', 'hip hop', 'pop', 'rnb']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.41 dB'
'TXXX:replaygain_track_peak'                        '0.717707'

========================== row from database ==========================
                                              'id'  1521457
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1989/008 - Milli Vanilli - Girl You Know It_s True.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  252
                                           'genre'  electronic-generic or radio-unsorted;hip hop or rnb or rap or turntablism;set-pl-billboard
                                        'filesize'  5058084
                                           'mtime'  1620533469
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 1989 008 It_s electronic generic or radio unsorted;hip hop or rnb or rap or turntablism;set pl billboard
                                      'tag_artist'  Milli Vanilli
                                     'tag_release'  Billboard Top Pop Singles of 1
                                       'tag_title'  Girl You Know It's True
                                             'bpm'  129.979
                                    'search_title'  'girl':1 'it':4 'its':6 'know':3 's':5 'true':7 'you':2
                                   'search_artist'  'milli':1 'vanilli':2
                                  'search_release'  '1':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 '1989':3 'billboard':22 'electronic':6 'generic':7 'hip':11,13 'hop':14 'it':4 'or':8 'pl':21 'radio':9 'rap':16 'rnb':15 's':5 'set':18,20 'top100':2 'turntablism':17,19 'unsorted':10,12
                                    'search_combo'  '00poprockelectronic':16 '1':15C '1989':18 'billboard':10C,37 'electronic':21 'generic':22 'girl':1A 'hip':26,28 'hop':29 'it':4A,19 'its':6A 'know':3A 'milli':8B 'of':14C 'or':23 'pl':36 'pop':12C 'radio':24 'rap':31 'rnb':30 's':5A,20 'set':33,35 'singles':13C 'top':11C 'top100':17 'true':7A 'turntablism':32,34 'unsorted':25,27 'vanilli':9B 'you':2A
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'german', 'hip hop', 'pop', 'rnb']
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620533469.4251685  (2021-05-09 06:11:09)
                             'size'  5058084