======================== unified (from filesystem) ========================
                                         'bitrate'  '320.064'
                                        'duration'  '255'
                                          'artist'  'The Prodigy'
                                     'text_people'  ''
                                         'release'  'Out of Space'
                                           'title'  'Music Reach (1,2,3,4) (live)'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['industrial', 'dance', 'techno', 'electronic', 'electronica']"
                                     'discogstags'  "['big beat', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat'
                                             'bpm'  '143.925'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Out of Space'
'TBPM' (BPM (beats per minute))                     '143.925'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-bigbeat'
'TDRC' (Recording time)                             '1992'
'TIT2' (Title/songname/content description)         'Music Reach (1,2,3,4) (live)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Prodigy'
'TRCK' (Track number/Position in set)               '4'
'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'                                  ['big beat', 'electronic']
'TXXX:lastfmtags'                                   ['industrial', 'dance', 'techno', 'electronic', 'electronica']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.36 dB'
'TXXX:replaygain_track_peak'                        '0.556939'

========================== row from database ==========================
                                              'id'  1405752
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Prodigy/Out Of Space (1992)/MBZ;#The Prodigy;#Out of Space;#04;#Music Reach (1,2,3,4) (live).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  255
                                           'genre'  electronic-generic or radio-bigbeat
                                        'filesize'  10250795
                                           'mtime'  1621695869
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Of (1992) MBZ;#The Prodigy;#Out Space;#04;#Music electronic generic or radio bigbeat
                                      'tag_artist'  The Prodigy
                                     'tag_release'  Out of Space
                                       'tag_title'  Music Reach (1,2,3,4) (live)
                                             'bpm'  143.925
                                    'search_title'  '1':3,7 '2':4,8 '3':5,9 '4':6,10 'live':11,12 'music':1 'reach':2
                                   'search_artist'  'prodigy':2 'the':1
                                  'search_release'  'of':2 'out':1 'space':3
                                     'search_rest'  '00poprockelectronic':1 '04':17,20 '1992':6,7 'bigbeat':25 'dance':3 'electronic':22 'generic':2 'mbz':8,10 'music':18,21 'of':5 'or':23 'out':13,15 'prodigy':12,14 'radio':24 'space':16,19 'the':9,11 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':18 '04':34,37 '1':3A,7A '1992':23,24 '2':4A,8A '3':5A,9A '4':6A,10A 'bigbeat':42 'dance':20 'electronic':39 'generic':19 'live':11A,12A 'mbz':25,27 'music':1A,35,38 'of':16C,22 'or':40 'out':15C,30,32 'prodigy':14B,29,31 'radio':41 'reach':2A 'space':17C,33,36 'the':13B,26,28 'trapbeat':21
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-syn-3', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'dance', 'techno', 'electronic', 'electronica']
                                        'tag_date'  1992
                                     'discogstags'  ['big beat', 'electronic']

============================== file details ==============================
                                           'mtime'  1621695869.1509988  (2021-05-22 17:04:29)
                             'size'  10250795