======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '18'
                                          'artist'  'The Egyptian Lover'
                                     'text_people'  ''
                                         'release'  'On The Nile'
                                           'title'  'What Is A DJ If He Can Scratch'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'electro', 'electronic', 'hip hop', 'early 80s electro']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '114.803'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'On The Nile'
'TBPM' (BPM (beats per minute))                     '114.803'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'What Is A DJ If He Can Scratch'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '197668'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'The Egyptian Lover'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'electro', 'electronic', 'hip hop', 'early 80s electro']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+4.03 dB'
'TXXX:replaygain_track_peak'                        '0.482502'

========================== row from database ==========================
                                              'id'  1316374
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/what is a dj if he can scratch.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  18
                                           'genre'  electronic-unsorted
                                        'filesize'  368924
                                           'mtime'  1620573234
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] what is dj if can scratch electronic unsorted
                                      'tag_artist'  The Egyptian Lover
                                     'tag_release'  On The Nile
                                       'tag_title'  What Is A DJ If He Can Scratch
                                             'bpm'  114.803
                                    'search_title'  'a':3 'can':7 'dj':4 'he':6 'if':5 'is':2 'scratch':8 'what':1
                                   'search_artist'  'egyptian':2 'lover':3 'the':1
                                  'search_release'  'nile':3 'on':1 'the':2
                                     'search_rest'  '00poprockelectronic':1 'can':11 'dj':9 'electronic':13 'files':5,6 'if':10 'is':8 'loose':3,4 'scratch':12 'unsorted':2 'what':7
                                    'search_combo'  '00poprockelectronic':15 'a':3A 'can':7A,25 'dj':4A,23 'egyptian':10B 'electronic':27 'files':19,20 'he':6A 'if':5A,24 'is':2A,22 'loose':17,18 'lover':11B 'nile':14C 'on':12C 'scratch':8A,26 'the':9B,13C 'unsorted':16 'what':1A,21
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', '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-3', 'q-other-1', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'electro', 'electronic', 'hip hop', 'early 80s electro']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573233.9340193  (2021-05-09 17:13:53)
                             'size'  368924