======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '221'
                                          'artist'  'Lords of Acid'
                                     'text_people'  ''
                                         'release'  '?'
                                           'title'  'lords of acid dirty-willy'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'acid house', 'industrial', 'electronic', 'techno']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '91.888'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '?'
'TBPM' (BPM (beats per minute))                     '91.888'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TIT2' (Title/songname/content description)         'lords of acid dirty-willy'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lords of Acid'
'TXXX:Mp3gain_minmax'                               '081,204'
'TXXX:Mp3gain_undo'                                 '+006,+006,N'
'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:lastfmtags'                                   ['electronica', 'acid house', 'industrial', 'electronic', 'techno']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.12 dB'
'TXXX:replaygain_track_peak'                        '0.392526'

========================== row from database ==========================
                                              'id'  1534653
                                            'path'  /data/Music/Bulk/00poprockelectronic/lords of acid_dirty-willy.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  221
                                           'genre'  electronic-th-techno
                                        'filesize'  3550215
                                           'mtime'  1620592449
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic acid_dirty electronic th techno
                                      'tag_artist'  Lords of Acid
                                     'tag_release'  ?
                                       'tag_title'  lords of acid dirty-willy
                                             'bpm'  91.888
                                    'search_title'  'acid':3 'dirty':4 'dirtywilly':6 'lords':1 'of':2 'willy':5
                                   'search_artist'  'acid':3 'lords':1 'of':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'acid':2 'dirty':3 'electronic':4 'techno':6 'th':5
                                    'search_combo'  '00poprockelectronic':10 'acid':3A,9B,11 'dirty':4A,12 'dirtywilly':6A 'electronic':13 'lords':1A,7B 'of':2A,8B 'techno':15 'th':14 'willy':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           '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-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'acid house', 'industrial', 'electronic', 'techno']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620592449.1486912  (2021-05-09 22:34:09)
                             'size'  3550215