======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '202'
                                          'artist'  'Justin Bieber'
                                     'text_people'  ''
                                         'release'  'Billboard Top 100 Year-End Charts'
                                           'title'  'Sorry'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rnb', 'black metal', 'pop', 'hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '002'
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;hip hop or rnb or rap or turntablism'
                                             'bpm'  '100.009'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'Billboard Top 100 Year-End Charts 2016'
'COMM:ID3v1 Comment:XXX'                            'Billboard Top 100 Year-End C'
'TALB' (Album/Movie/Show title)                     'Billboard Top 100 Year-End Charts'
'TBPM' (BPM (beats per minute))                     '100.009'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'hip hop or rnb or rap or turntablism']
'TDRC' (Recording time)                             '2015'
'TENC' (Encoded by)                                 'Lame 3.99.5'
'TIT2' (Title/songname/content description)         'Sorry'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Justin Bieber'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '002'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rnb', 'black metal', 'pop', 'hip hop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.64 dB'
'TXXX:replaygain_track_peak'                        '0.386792'

========================== row from database ==========================
                                              'id'  1319777
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Hot 100 End Of Year Charts 2016/002. Justin Bieber - Sorry.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  202
                                           'genre'  electronic-generic or radio-unsorted;hip hop or rnb or rap or turntablism
                                        'filesize'  8142992
                                           'mtime'  1620567726
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Hot Of 2016 002. electronic generic radio unsorted;hip hop rnb rap turntablism
                                      'tag_artist'  Justin Bieber
                                     'tag_release'  Billboard Top 100 Year-End Charts
                                       'tag_title'  Sorry
                                             'bpm'  100.009
                                    'search_title'  'sorry':1
                                   'search_artist'  'bieber':2 'justin':1
                                  'search_release'  '100':3 'billboard':1 'charts':7 'end':5 'top':2 'year':4 'yearend':6
                                     'search_rest'  '002':5,6 '00poprockelectronic':1 '2016':4 'electronic':7 'generic':8 'hip':11,13 'hop':14 'hot':2 'of':3 'radio':9 'rap':16 'rnb':15 'turntablism':17 'unsorted':10,12
                                    'search_combo'  '002':15,16 '00poprockelectronic':11 '100':6C '2016':14 'bieber':3B 'billboard':4C 'charts':10C 'electronic':17 'end':8C 'generic':18 'hip':21,23 'hop':24 'hot':12 'justin':2B 'of':13 'radio':19 'rap':26 'rnb':25 'sorry':1A 'top':5C 'turntablism':27 'unsorted':20,22 'year':7C 'yearend':9C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', '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-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rnb', 'black metal', 'pop', 'hip hop']
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620567726.3648484  (2021-05-09 15:42:06)
                             'size'  8142992