<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '397'
                                          'artist'  'Tentacle'
                                     'text_people'  ''
                                         'release'  'Beatport: Top 100 - December 2015 (Indie Dance / Nu Disco)'
                                           'title'  'Goliath (Original Mix)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-2', '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-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['psychedelic rock', 'hard rock', 'sludge', 'doom metal', 'doom']"
                                     'discogstags'  ("['art rock', 'psychedelic rock', 'rock', 'funk / soul', 'blues', 'hard "
 "rock', 'psychedelic']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '117.01'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382f1fa0>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1344363"/>
'APIC: '                                            type PictureType.FISH (A bright coloured fish) b' '<br/>                                     <img style="width:150px" src="image?fid=1344363"/>
'TALB' (Album/Movie/Show title)                     'Beatport: Top 100 - December 2015 (Indie Dance / Nu Disco)'
'TBPM' (BPM (beats per minute))                     '117.01'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDOR' (Original release time)                      '2015'
'TDRC' (Recording time)                             '2015'
'TFLT' (File type)                                  'MPG/3'
'TIT2' (Title/songname/content description)         'Goliath (Original Mix)'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tentacle'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['art rock',
 'psychedelic rock',
 'rock',
 'funk / soul',
 'blues',
 'hard rock',
 'psychedelic']
'TXXX:lastfmtags'                                   ['psychedelic rock', 'hard rock', 'sludge', 'doom metal', 'doom']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.81 dB'
'TXXX:replaygain_track_peak'                        '0.642870'
'UFID:'                                             UFID(owner='', data=b'\x03track-7387483')
'WOAF' (Official audio file webpage)                WOAF(url='http://www.beatport.com/track/goliath-original-mix/7387483')
'WPUB' (Publishers official webpage)                WPUB(url='http://www.beatport.com/label/natura-sonoris/7981')

========================== row from database ==========================
                                              'id'  1344363
                                            'path'  /data/Music/Bulk/00poprockelectronic/Marvin & Guy - 2015-2016/Tentacle - Goliath (Original Mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  397
                                           'genre'  electronic-unsorted
                                        'filesize'  16003107
                                           'mtime'  1620571182
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Marvin & Guy 2016 electronic unsorted
                                      'tag_artist'  Tentacle
                                     'tag_release'  Beatport: Top 100 - December 2015 (Indie Dance / Nu Disco)
                                       'tag_title'  Goliath (Original Mix)
                                             'bpm'  117.01
                                    'search_title'  'goliath':1 'mix':4,5 'original':2,3
                                   'search_artist'  'tentacle':1
                                  'search_release'  '100':4 '2015':6 'beatport':1,2 'dance':9 'december':5 'disco':11,12 'indie':7,8 'nu':10 'top':3
                                     'search_rest'  '00poprockelectronic':1 '2016':4 'electronic':5 'guy':3 'marvin':2 'unsorted':6
                                    'search_combo'  '00poprockelectronic':19 '100':10C '2015':12C '2016':22 'beatport':7C,8C 'dance':15C 'december':11C 'disco':17C,18C 'electronic':23 'goliath':1A 'guy':21 'indie':13C,14C 'marvin':20 'mix':4A,5A 'nu':16C 'original':2A,3A 'tentacle':6B 'top':9C 'unsorted':24
                                    'tag_tracknum'  None
                                      'num_images'  2
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['psychedelic rock', 'hard rock', 'sludge', 'doom metal', 'doom']
                                        'tag_date'  2015
                                     'discogstags'  ['art rock', 'psychedelic rock', 'rock', 'funk / soul', 'blues', 'hard rock', 'psychedelic']

============================== file details ==============================
                                           'mtime'  1620571182.1016703  (2021-05-09 16:39:42)
                             'size'  16003107