======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '282'
                                          'artist'  'Disclosure'
                                     'text_people'  ''
                                         'release'  'You & Me (Flume remix)'
                                           'title'  'You & Me (Flume remix)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-3']")
                                      'lastfmtags'  "['future garage', 'uk garage', 'dubstep', 'electronic', 'house']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '1'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '146.000'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'You & Me (Flume remix)'
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         'You & Me (Flume remix)'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Disclosure'
'TPE2' (Band/orchestra/accompaniment)               'Disclosure'
'TPOS' (Part of a set)                              '/1'
'TRCK' (Track number/Position in set)               '1/1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:date'                                         '2013'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['future garage', 'uk garage', 'dubstep', 'electronic', 'house']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+14.95 dB'
'TXXX:replaygain_track_peak'                        '0.084381'

========================== row from database ==========================
                                              'id'  1307729
                                            'path'  /data/Music/Bulk/00poprockelectronic/set/01 You & Me (Flume remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  282
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  11378570
                                           'mtime'  1620573835
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic set 01 electronic generic or radio dance
                                      'tag_artist'  Disclosure
                                     'tag_release'  You & Me (Flume remix)
                                       'tag_title'  You & Me (Flume remix)
                                             'bpm'  146.0
                                    'search_title'  'flume':3,4 'me':2 'remix':5,6 'you':1
                                   'search_artist'  'disclosure':1
                                  'search_release'  'flume':3,4 'me':2 'remix':5,6 'you':1
                                     'search_rest'  '00poprockelectronic':1 'dance':7 'electronic':3 'generic':4 'or':5 'radio':6 'set':2
                                    'search_combo'  '00poprockelectronic':14 'dance':20 'disclosure':7B 'electronic':16 'flume':3A,4A,10C,11C 'generic':17 'me':2A,9C 'or':18 'radio':19 'remix':5A,6A,12C,13C 'set':15 'you':1A,8C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['future garage', 'uk garage', 'dubstep', 'electronic', 'house']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620573835.0703902  (2021-05-09 17:23:55)
                             'size'  11378570