======================== unified (from filesystem) ========================
                                         'bitrate'  '190.596'
                                        'duration'  '248'
                                          'artist'  'Robert Owen'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Living In A Land'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                     'discogstags'  "['classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-acid'
                                             'bpm'  '115.195'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:O\x1a\x00\x00'                   PRIV(owner='AverageLevel', data=b'O\x1a\x00\x00')
'PRIV:PeakValue:F\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'F\x7f\x00\x00')
'TBPM' (BPM (beats per minute))                     '115.195'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-acid'
'TIT2' (Title/songname/content description)         'Living In A Land'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Robert Owen'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'classical'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.09 dB'
'TXXX:replaygain_track_peak'                        '0.497175'

========================== row from database ==========================
                                              'id'  1356382
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/03 - Robert Owen - Living In A Land.mp3
                                         'working'  None
                                         'bitrate'  190
                                    'duration_sec'  248
                                           'genre'  electronic-th-techno-acid
                                        'filesize'  5918473
                                           'mtime'  1620572551
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 03 electronic th techno acid
                                      'tag_artist'  Robert Owen
                                     'tag_release'  None
                                       'tag_title'  Living In A Land
                                             'bpm'  115.195
                                    'search_title'  'a':3 'in':2 'land':4 'living':1
                                   'search_artist'  'owen':2 'robert':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'acid':10 'electronic':7 'files':5,6 'loose':3,4 'techno':9 'th':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 'a':3A 'acid':16 'electronic':13 'files':11,12 'in':2A 'land':4A 'living':1A 'loose':9,10 'owen':6B 'robert':5B 'techno':15 'th':14 'unsorted':8
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  ['classical']

============================== file details ==============================
                                           'mtime'  1620572550.7215867  (2021-05-09 17:02:30)
                             'size'  5918473