======================== unified (from filesystem) ========================
                                         'bitrate'  '263.466'
                                        'duration'  '229'
                                          'artist'  'Calvin Harris'
                                     'text_people'  ''
                                         'release'  'Ready For The Weekend'
                                           'title'  'Flashback'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'electronica', 'electro', 'electronic', 'disco']"
                                     'discogstags'  "['electronic', 'house', 'electro']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '14'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '127.9'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'PRIV:WM/WMCollectionID:4"½Û©îÓM³s2\r´]D,'          PRIV(owner='WM/WMCollectionID', data=b'4"\xbd\xdb\xa9\xee\xd3M\xb3s2\r\xb4]D,')
'PRIV:WM/WMContentID:\x83\x95\x11Û\x01\x17ìD£¸VÝò¼R2'  PRIV(owner='WM/WMContentID', data=b'\x83\x95\x11\xdb\x01\x17\xecD\xa3\xb8V\xdd\xf2\xbcR2')
'TALB' (Album/Movie/Show title)                     'Ready For The Weekend'
'TBPM' (BPM (beats per minute))                     '127.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'Flashback'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Calvin Harris'
'TPUB' (Publisher)                                  'Ultra Records'
'TRCK' (Track number/Position in set)               '7/14'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'house', 'electro']
'TXXX:lastfmtags'                                   ['dance', 'electronica', 'electro', 'electronic', 'disco']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.03 dB'
'TXXX:replaygain_track_peak'                        '0.410497'

========================== row from database ==========================
                                              'id'  1417359
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Ready For The Weekend/07  calvin harris - flashback.mp3
                                         'working'  None
                                         'bitrate'  263
                                    'duration_sec'  229
                                           'genre'  electronic-unsorted
                                        'filesize'  7599538
                                           'mtime'  1621695874
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 07 calvin harris flashback electronic unsorted
                                      'tag_artist'  Calvin Harris
                                     'tag_release'  Ready For The Weekend
                                       'tag_title'  Flashback
                                             'bpm'  127.9
                                    'search_title'  'flashback':1
                                   'search_artist'  'calvin':1 'harris':2
                                  'search_release'  'for':2 'ready':1 'the':3 'weekend':4
                                     'search_rest'  '00poprockelectronic':1 'calvin':5 'dance':3 'electronic':8 'flashback':7 'generic':2 'harris':6 'trapbeat':4 'unsorted':9
                                    'search_combo'  '00poprockelectronic':8 'calvin':2B,12 'dance':10 'electronic':15 'flashback':1A,14 'for':5C 'generic':9 'harris':3B,13 'ready':4C 'the':6C 'trapbeat':11 'unsorted':16 'weekend':7C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'electronica', 'electro', 'electronic', 'disco']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic', 'house', 'electro']

============================== file details ==============================
                                           'mtime'  1621695874.1622558  (2021-05-22 17:04:34)
                             'size'  7599538