======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '217'
                                          'artist'  'Fifth Harmony ft. Ty Dolla $ign'
                                     'text_people'  ''
                                         'release'  'Billboard Top 100 Year-End Charts'
                                           'title'  'Work from Home'
                                           '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-1', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['future house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '016'
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '104.877'
                                             'key'  '4B'
                                        '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))                     '104.877'
'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)         'Work from Home'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Fifth Harmony ft. Ty Dolla $ign'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '016'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   'future house'
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.54 dB'
'TXXX:replaygain_track_peak'                        '0.362222'

========================== row from database ==========================
                                              'id'  1306107
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Hot 100 End Of Year Charts 2016/016. Fifth Harmony ft. Ty Dolla $ign - Work from Home.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  217
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  8742740
                                           'mtime'  1620567732
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Hot Of 2016 016. electronic generic radio unsorted
                                      'tag_artist'  Fifth Harmony ft. Ty Dolla $ign
                                     'tag_release'  Billboard Top 100 Year-End Charts
                                       'tag_title'  Work from Home
                                             'bpm'  104.877
                                    'search_title'  'from':2 'home':3 'work':1
                                   'search_artist'  'dolla':6 'fifth':1 'ft':3,4 'harmony':2 'ign':7 'ty':5
                                  'search_release'  '100':3 'billboard':1 'charts':7 'end':5 'top':2 'year':4 'yearend':6
                                     'search_rest'  '00poprockelectronic':1 '016':5,6 '2016':4 'electronic':7 'generic':8 'hot':2 'of':3 'radio':9 'unsorted':10
                                    'search_combo'  '00poprockelectronic':18 '016':22,23 '100':13C '2016':21 'billboard':11C 'charts':17C 'dolla':9B 'electronic':24 'end':15C 'fifth':4B 'from':2A 'ft':6B,7B 'generic':25 'harmony':5B 'home':3A 'hot':19 'ign':10B 'of':20 'radio':26 'top':12C 'ty':8B 'unsorted':27 'work':1A 'year':14C 'yearend':16C
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['future house']
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620567732.4952834  (2021-05-09 15:42:12)
                             'size'  8742740