======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '150'
                                          'artist'  'Roni Size'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Heroes'
                                           'quals'  ("['Q-SYN-3', 'Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['drum and bass', 'drum n bass', 'jungle', 'electronic', 'dnb']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '106.700'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '106.700'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TIT2' (Title/songname/content description)         'Heroes'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Roni Size'
'TXXX:Mp3gain_minmax'                               '143,195'
'TXXX:Mp3gain_undo'                                 '+004,+004,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['drum and bass', 'drum n bass', 'jungle', 'electronic', 'dnb']
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.03 dB'
'TXXX:replaygain_track_peak'                        '0.538097'

========================== row from database ==========================
                                              'id'  1333965
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Roni Size - Heroes .mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  150
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  2402605
                                           'mtime'  1639511353
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] electronic th breakbeat or dnb or jungle
                                      'tag_artist'  Roni Size
                                     'tag_release'  None
                                       'tag_title'  Heroes
                                             'bpm'  106.7
                                    'search_title'  'heroes':1
                                   'search_artist'  'roni':1 'size':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'breakbeat':9 'dnb':11 'electronic':7 'files':5,6 'jungle':12 'loose':3,4 'or':10 'th':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':4 'breakbeat':12 'dnb':14 'electronic':10 'files':8,9 'heroes':1A 'jungle':15 'loose':6,7 'or':13 'roni':2B 'size':3B 'th':11 'unsorted':5
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11B
                                           '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-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['drum and bass', 'drum n bass', 'jungle', 'electronic', 'dnb']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1639511352.9182148  (2021-12-14 20:49:12)
                             'size'  2402605