======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '222'
                                          'artist'  'Classical-Grieg'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'In The Hall of the Mountain-Ki'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', '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-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-cover or covered'
                                             'bpm'  '106.643'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '106.643'
'TCON' (Content type, a.k.a. Genre)                 ['set-cover or covered', 'set-cover or covered']
'TIT2' (Title/songname/content description)         'In The Hall of the Mountain-Ki'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Classical-Grieg'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'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'                        '-0.70 dB'
'TXXX:replaygain_track_peak'                        '0.469226'

========================== row from database ==========================
                                              'id'  1293845
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Classical-Grieg - In The Hall of the Mountain-King Techno Mix.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  222
                                           'genre'  set-cover or covered
                                        'filesize'  3563280
                                           'mtime'  1652397951
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] King Techno Mix set cover or covered
                                      'tag_artist'  Classical-Grieg
                                     'tag_release'  None
                                       'tag_title'  In The Hall of the Mountain-Ki
                                             'bpm'  106.643
                                    'search_title'  'hall':3 'in':1 'ki':6 'mountain':5 'mountainki':7 'of':4 'the':2
                                   'search_artist'  'classical':1 'classicalgrieg':3 'grieg':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'cover':11 'covered':13 'files':5,6 'king':7 'loose':3,4 'mix':9 'or':12 'set':10 'techno':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':11 'classical':8B 'classicalgrieg':10B 'cover':21 'covered':23 'files':15,16 'grieg':9B 'hall':3A 'in':1A 'ki':6A 'king':17 'loose':13,14 'mix':19 'mountain':5A 'mountainki':7A 'of':4A 'or':22 'set':20 'techno':18 'the':2A 'unsorted':12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', '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-mixbeat-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397950.6097896  (2022-05-13 01:25:50)
                             'size'  3563280