======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '266'
                                          'artist'  'Belinda Carlisle'
                                     'text_people'  ''
                                         'release'  'Heaven On Earth'
                                           'title'  'Circle In The Sand'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'female vocalists', 'pop', 'summer']"
                                     'discogstags'  "['electronic', 'rock', 'soft rock', 'downtempo']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio'
                                             'bpm'  '126.017'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Heaven On Earth'
'TBPM' (BPM (beats per minute))                     '126.017'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Circle In The Sand'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Belinda Carlisle'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'rock', 'soft rock', 'downtempo']
'TXXX:lastfmtags'                                   ['80s', 'female vocalists', 'pop', 'summer']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.03 dB'
'TXXX:replaygain_track_peak'                        '0.607605'

========================== row from database ==========================
                                              'id'  1409060
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Belinda Carlisle/MBZ;#Belinda Carlisle;#Heaven On Earth;#02;#Circle In The Sand.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  266
                                           'genre'  electronic-generic or radio
                                        'filesize'  4266671
                                           'mtime'  1620558359
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat MBZ;#Belinda Carlisle;#Heaven Earth;#02;#Circle electronic generic or radio
                                      'tag_artist'  Belinda Carlisle
                                     'tag_release'  Heaven On Earth
                                       'tag_title'  Circle In The Sand
                                             'bpm'  126.017
                                    'search_title'  'circle':1 'in':2 'sand':4 'the':3
                                   'search_artist'  'belinda':1 'carlisle':2
                                  'search_release'  'earth':3 'heaven':1 'on':2
                                     'search_rest'  '00poprockelectronic':1 '02':14,17 'belinda':6,8 'carlisle':9,11 'circle':15,18 'dance':3 'earth':13,16 'electronic':19 'generic':2 'heaven':10,12 'mbz':5,7 'or':20 'radio':21 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':10 '02':23,26 'belinda':5B,15,17 'carlisle':6B,18,20 'circle':1A,24,27 'dance':12 'earth':9C,22,25 'electronic':28 'generic':11 'heaven':7C,19,21 'in':2A 'mbz':14,16 'on':8C 'or':29 'radio':30 'sand':4A 'the':3A 'trapbeat':13
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'female vocalists', 'pop', 'summer']
                                        'tag_date'  1980
                                     'discogstags'  ['electronic', 'rock', 'soft rock', 'downtempo']

============================== file details ==============================
                                           'mtime'  1620558359.2464364  (2021-05-09 13:05:59)
                             'size'  4266671