======================== unified (from filesystem) ========================
                                         'bitrate'  '255.987'
                                        'duration'  '495'
                                          'artist'  'Sweet Light'
                                     'text_people'  ''
                                         'release'  'Abusator'
                                           'title'  'Abusator'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'q-syn-2', "
 "'q-bass-3', '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-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['electronic', 'house', 'all', 'tech house', 'spotify']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '131.841'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Abusator'
'TBPM' (BPM (beats per minute))                     '131.841'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT2' (Title/songname/content description)         'Abusator'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sweet Light'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronic', 'house', 'all', 'tech house', 'spotify']
'TXXX:q-bass'                                       '3'
'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'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+6.69 dB'
'TXXX:replaygain_track_peak'                        '0.241624'

========================== row from database ==========================
                                              'id'  1335899
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/01. Sweet Light - Abusator.mp3
                                         'working'  None
                                         'bitrate'  255
                                    'duration_sec'  495
                                           'genre'  electronic-unsorted
                                        'filesize'  15865449
                                           'mtime'  1620572532
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 01. electronic unsorted
                                      'tag_artist'  Sweet Light
                                     'tag_release'  Abusator
                                       'tag_title'  Abusator
                                             'bpm'  131.841
                                    'search_title'  'abusator':1
                                   'search_artist'  'light':2 'sweet':1
                                  'search_release'  'abusator':1
                                     'search_rest'  '00poprockelectronic':1 '01':7,8 'electronic':9 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':5 '01':11,12 'abusator':1A,4C 'electronic':13 'files':9,10 'light':3B 'loose':7,8 'sweet':2B 'unsorted':6
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'house', 'all', 'tech house', 'spotify']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620572532.1931577  (2021-05-09 17:02:12)
                             'size'  15865449