======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '383'
                                          'artist'  'Command & Conquer'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Red Alert - Hell March'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'q-syn-2', "
 "'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-4', "
 "'q-other-3', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-3']")
                                      'lastfmtags'  ("['industrial', 'soundtrack', 'electronic', 'video game music', 'game "
 "soundtracks']")
                                     'discogstags'  "['electronic', 'drum n bass']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '120.042'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '120.042'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT2' (Title/songname/content description)         'Red Alert - Hell March'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Command & Conquer'
'TXXX:Mp3gain_minmax'                               '078,183'
'TXXX:Mp3gain_undo'                                 '+004,+004,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'drum n bass']
'TXXX:lastfmtags'                                   ['industrial',
 'soundtrack',
 'electronic',
 'video game music',
 'game soundtracks']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.63 dB'
'TXXX:replaygain_track_peak'                        '0.495700'

========================== row from database ==========================
                                              'id'  1333118
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Command & Conquer - Red Alert - Hell March.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  383
                                           'genre'  electronic-unsorted
                                        'filesize'  6134746
                                           'mtime'  1620572766
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] electronic unsorted
                                      'tag_artist'  Command & Conquer
                                     'tag_release'  None
                                       'tag_title'  Red Alert - Hell March
                                             'bpm'  120.042
                                    'search_title'  'alert':2 'hell':3 'march':4 'red':1
                                   'search_artist'  'command':1 'conquer':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'electronic':7 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 'alert':2A 'command':5B 'conquer':6B 'electronic':13 'files':11,12 'hell':3A 'loose':9,10 'march':4A 'red':1A 'unsorted':8
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', '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-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'soundtrack', 'electronic', 'video game music', 'game soundtracks']
                                        'tag_date'  
                                     'discogstags'  ['electronic', 'drum n bass']

============================== file details ==============================
                                           'mtime'  1620572766.4871273  (2021-05-09 17:06:06)
                             'size'  6134746