======================== unified (from filesystem) ========================
                                         'bitrate'  '191.973'
                                        'duration'  '189'
                                          'artist'  'Kelly Clarkson'
                                     'text_people'  ''
                                         'release'  'Breakaway/Clean'
                                           'title'  'Since U Been Gone'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['pop rock', 'female vocalists', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '130.988'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Breakaway/Clean'
'TBPM' (BPM (beats per minute))                     '130.988'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TIT2' (Title/songname/content description)         'Since U Been Gone'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kelly Clarkson'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['pop rock', 'female vocalists', 'pop', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+9.68 dB'
'TXXX:replaygain_track_peak'                        '0.120134'

========================== row from database ==========================
                                              'id'  1285213
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/004 - Kelly Clarkson - Since U Been Gone.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  189
                                           'genre'  rock-unsorted
                                        'filesize'  4541058
                                           'mtime'  1620392238
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 004 rock unsorted
                                      'tag_artist'  Kelly Clarkson
                                     'tag_release'  Breakaway/Clean
                                       'tag_title'  Since U Been Gone
                                             'bpm'  130.988
                                    'search_title'  'been':3 'gone':4 'since':1 'u':2
                                   'search_artist'  'clarkson':2 'kelly':1
                                  'search_release'  'breakaway':1 'breakawayclean':3 'clean':2
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'loose':3,4 'rock':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':10 'been':3A 'breakaway':7C 'breakawayclean':9C 'clarkson':6B 'clean':8C 'files':14,15 'gone':4A 'kelly':5B 'loose':12,13 'rock':16 'since':1A 'u':2A 'unsorted':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', '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-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop rock', 'female vocalists', 'pop', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620392238.0351799  (2021-05-07 14:57:18)
                             'size'  4541058