======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '214'
                                          'artist'  'learn'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'Q-OLDST-3', 'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', "
 "'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  ("['hardcore', 'hardcore punk', 'oldschool hardcore', 'youth crew', 'old "
 "school hardcore']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '130.2'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '130.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'learn'
'TXXX:Mp3gain_minmax'                               '113,209'
'TXXX:Mp3gain_undo'                                 '+001,+001,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['hardcore',
 'hardcore punk',
 'oldschool hardcore',
 'youth crew',
 'old school hardcore']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.83 dB'
'TXXX:replaygain_track_peak'                        '0.841255'

========================== row from database ==========================
                                              'id'  789132
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Blip and beep/learn.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  214
                                           'genre'  electronic-unsorted
                                        'filesize'  3430740
                                           'mtime'  1620520408
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Blip and beep electronic unsorted
                                      'tag_artist'  learn
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  130.2
                                    'search_title'  None
                                   'search_artist'  'learn':1
                                  'search_release'  
                                     'search_rest'  'and':2 'beep':3 'blip':1 'electronic':4 'unsorted':5
                                    'search_combo'  'and':3 'beep':4 'blip':2 'electronic':5 'learn':1B 'unsorted':6
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-piano-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['hardcore', 'hardcore punk', 'oldschool hardcore', 'youth crew', 'old school hardcore']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620520407.9163961  (2021-05-09 02:33:27)
                             'size'  3430740