======================== unified (from filesystem) ========================
                                         'bitrate'  '203.956'
                                        'duration'  '352'
                                          'artist'  'Engine-EarZ Experiment'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Kaliyuga'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-2', 'Q-OLDST-3', 'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', "
 "'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-3', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['dubstep', 'electronic', 'experimental', 'electronica']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '139.754'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '139.754'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         'Kaliyuga'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Engine-EarZ Experiment'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['dubstep', 'electronic', 'experimental', 'electronica']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.52 dB'
'TXXX:replaygain_track_peak'                        '0.535475'

========================== row from database ==========================
                                              'id'  1456612
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/00mixable/Unsorted/Engine-EarZ-Experiment-Kaliyuga.mp3
                                         'working'  None
                                         'bitrate'  203
                                    'duration_sec'  352
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  8981948
                                           'mtime'  1620558240
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 00mixable Unsorted electronic generic or radio dance
                                      'tag_artist'  Engine-EarZ Experiment
                                     'tag_release'  None
                                       'tag_title'  Kaliyuga
                                             'bpm'  139.754
                                    'search_title'  'kaliyuga':1
                                   'search_artist'  'ear':6 'earz':2 'engine':1,5 'engineear':7 'engineearz':3 'experiment':4 'z':8
                                  'search_release'  
                                     'search_rest'  '00mixable':5 '00poprockelectronic':1 'dance':3 'electronic':7 'generic':2 'or':8 'radio':9 'trapbeat':4 'unsorted':6
                                    'search_combo'  '00mixable':14 '00poprockelectronic':10 'dance':12 'ear':7B 'earz':3B 'electronic':16 'engine':2B,6B 'engineear':8B 'engineearz':4B 'experiment':5B 'generic':11 'kaliyuga':1A 'or':17 'radio':18 'trapbeat':13 'unsorted':15 'z':9B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dubstep', 'electronic', 'experimental', 'electronica']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620558239.977043  (2021-05-09 13:03:59)
                             'size'  8981948