======================== unified (from filesystem) ========================
                                         'bitrate'  '174.076'
                                        'duration'  '206'
                                          'artist'  'Jammin'
                                     'text_people'  ''
                                         'release'  'Bingo Sessions Vol 1-Mixed by'
                                           'title'  'Go DJ (Zinc Dnb Mix)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', "
 "'q-play-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-2', 'q-drums-4', 'q-other-2', "
 "'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-4', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['grime', 'breakbeat', 'breaks', 'uk', 'all']"
                                     'discogstags'  "['electronic', 'happy hardcore']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '88.670'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '/RFL'
'COMM:ID3v1 Comment:XXX'                            '/RFL'
'TALB' (Album/Movie/Show title)                     'Bingo Sessions Vol 1-Mixed by'
'TBPM' (BPM (beats per minute))                     '88.670'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Go DJ (Zinc Dnb Mix)'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jammin'
'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', 'happy hardcore']
'TXXX:lastfmtags'                                   ['grime', 'breakbeat', 'breaks', 'uk', 'all']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.70 dB'
'TXXX:replaygain_track_peak'                        '0.460971'

========================== row from database ==========================
                                              'id'  1301149
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/Roni Size - Bingo session Vol 1/123-Jammin-Go_DJ_(Zinc_Dnb_Mix)-rfl.mp3
                                         'working'  None
                                         'bitrate'  174
                                    'duration_sec'  206
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  4488111
                                           'mtime'  1621696645
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb Roni Size session 123 Go_DJ_(Zinc_Dnb_Mix) rfl electronic th breakbeat or dnb or jungle
                                      'tag_artist'  Jammin
                                     'tag_release'  Bingo Sessions Vol 1-Mixed by
                                       'tag_title'  Go DJ (Zinc Dnb Mix)
                                             'bpm'  88.67
                                    'search_title'  'dj':2 'dnb':5 'go':1 'mix':6,7 'zinc':3,4
                                   'search_artist'  'jammin':1
                                  'search_release'  '1':4 '1mixed':6 'bingo':1 'by':7 'mixed':5 'sessions':2 'vol':3
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 '123':6 'breakbeat':20 'dj':8,13 'dnb':10,15,22 'electronic':18 'go':7,12 'jungle':23 'mix':11,16 'or':21 'rfl':17 'roni':3 'session':5 'size':4 'th':19 'zinc':9,14
                                    'search_combo'  '00dnb':17 '00poprockelectronic':16 '1':12C '123':21 '1mixed':14C 'bingo':9C 'breakbeat':35 'by':15C 'dj':2A,23,28 'dnb':5A,25,30,37 'electronic':33 'go':1A,22,27 'jammin':8B 'jungle':38 'mix':6A,7A,26,31 'mixed':13C 'or':36 'rfl':32 'roni':18 'session':20 'sessions':10C 'size':19 'th':34 'vol':11C 'zinc':3A,4A,24,29
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['grime', 'breakbeat', 'breaks', 'uk', 'all']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic', 'happy hardcore']

============================== file details ==============================
                                           'mtime'  1621696644.7284505  (2021-05-22 17:17:24)
                             'size'  4488111