======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '314'
                                          'artist'  'Future ft. The Weeknd'
                                     'text_people'  ''
                                         'release'  'Billboard Top 100 Year-End Charts'
                                           'title'  'Low Life'
                                           'quals'  ("['Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '030'
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '145.790'
                                             'key'  '5A'
                                        '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))                     '145.790'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '2016'
'TENC' (Encoded by)                                 'Lame 3.99.5'
'TIT2' (Title/songname/content description)         'Low Life'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Future ft. The Weeknd'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '030'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.81 dB'
'TXXX:replaygain_track_peak'                        '0.589883'

========================== row from database ==========================
                                              'id'  1332228
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Hot 100 End Of Year Charts 2016/030. Future ft. The Weeknd - Low Life.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  314
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  12708815
                                           'mtime'  1620567739
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Hot Of 2016 030. electronic generic or radio unsorted
                                      'tag_artist'  Future ft. The Weeknd
                                     'tag_release'  Billboard Top 100 Year-End Charts
                                       'tag_title'  Low Life
                                             'bpm'  145.79
                                    'search_title'  'life':2 'low':1
                                   'search_artist'  'ft':2,3 'future':1 'the':4 'weeknd':5
                                  'search_release'  '100':3 'billboard':1 'charts':7 'end':5 'top':2 'year':4 'yearend':6
                                     'search_rest'  '00poprockelectronic':1 '030':5,6 '2016':4 'electronic':7 'generic':8 'hot':2 'of':3 'or':9 'radio':10 'unsorted':11
                                    'search_combo'  '00poprockelectronic':15 '030':19,20 '100':10C '2016':18 'billboard':8C 'charts':14C 'electronic':21 'end':12C 'ft':4B,5B 'future':3B 'generic':22 'hot':16 'life':2A 'low':1A 'of':17 'or':23 'radio':24 'the':6B 'top':9C 'unsorted':25 'weeknd':7B 'year':11C 'yearend':13C
                                    'tag_tracknum'  30
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620567738.7899477  (2021-05-09 15:42:18)
                             'size'  12708815