<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '425'
                                          'artist'  'Black Devil Disco Club'
                                     'text_people'  ''
                                         'release'  'Beatport: Closing Tracks September 2016 (Indie Dance / Nu Disco)'
                                           'title'  '"H" Friend (Andrew Weatherall Remix)'
                                           '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-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', 'dirty disco', 'space disco', 'electronic', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '127.84'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f9537d81e80>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1520721"/>
'TALB' (Album/Movie/Show title)                     'Beatport: Closing Tracks September 2016 (Indie Dance / Nu Disco)'
'TBPM' (BPM (beats per minute))                     '127.84'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         '"H" Friend (Andrew Weatherall Remix)'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Black Devil Disco Club'
'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:lastfmtags'                                   ['dance', 'dirty disco', 'space disco', 'electronic', 'disco']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.86 dB'
'TXXX:replaygain_track_peak'                        '0.426815'
'WOAF' (Official audio file webpage)                WOAF(url='http://traxsource.com/track/2901260/h-friend-andrew-weatherall-remix')
'WPUB' (Publishers official webpage)                WPUB(url='http://traxsource.com/label/7325/alter-k')

========================== row from database ==========================
                                              'id'  1520721
                                            'path'  /data/Music/Bulk/00poprockelectronic/Marvin & Guy - 2015-2016/Black Devil Disco Club - _H_ Friend (Andrew Weatherall Remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  425
                                           'genre'  electronic-unsorted
                                        'filesize'  17103489
                                           'mtime'  1621696374
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Marvin & Guy 2015 _H_ electronic unsorted
                                      'tag_artist'  Black Devil Disco Club
                                     'tag_release'  Beatport: Closing Tracks September 2016 (Indie Dance / Nu Disco)
                                       'tag_title'  "H" Friend (Andrew Weatherall Remix)
                                             'bpm'  127.84
                                    'search_title'  'andrew':3,4 'friend':2 'h':1 'remix':6,7 'weatherall':5
                                   'search_artist'  'black':1 'club':4 'devil':2 'disco':3
                                  'search_release'  '2016':6 'beatport':1,2 'closing':3 'dance':9 'disco':11,12 'indie':7,8 'nu':10 'september':5 'tracks':4
                                     'search_rest'  '00poprockelectronic':1 '2015':4 'electronic':6 'guy':3 'h':5 'marvin':2 'unsorted':7
                                    'search_combo'  '00poprockelectronic':24 '2015':27 '2016':17C 'andrew':3A,4A 'beatport':12C,13C 'black':8B 'closing':14C 'club':11B 'dance':20C 'devil':9B 'disco':10B,22C,23C 'electronic':29 'friend':2A 'guy':26 'h':1A,28 'indie':18C,19C 'marvin':25 'nu':21C 'remix':6A,7A 'september':16C 'tracks':15C 'unsorted':30 'weatherall':5A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4A
                                           '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-1', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'dirty disco', 'space disco', 'electronic', 'disco']
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696373.5025783  (2021-05-22 17:12:53)
                             'size'  17103489