======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '394'
                                          'artist'  'Ten Walls'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Gotham (Maeryn Schenz Remix)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'Q-SYN-3', 'Q-BUSY-2', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-3', "
 "'Q-CHART-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-3']")
                                      'lastfmtags'  "['deep house', 'electronic', 'house', 'lithuanian', 'dub techno']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '123.9'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::spa'                                         '201306'
'PRIV:www.virtualdj.com:\r\n\x00'  PRIV(owner='<a href="http://www.virtualdj.com/">www.virtualdj.com</a>', data=b'<Song />\r\n\x00')
'TBPM' (BPM (beats per minute))                     '123.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TIT2' (Title/songname/content description)         'Gotham (Maeryn Schenz Remix)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ten Walls'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['deep house', 'electronic', 'house', 'lithuanian', 'dub techno']
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.49 dB'
'TXXX:replaygain_track_peak'                        '0.731903'

========================== row from database ==========================
                                              'id'  1487329
                                            'path'  /data/Music/Bulk/00poprockelectronic/Deep Techno/Ten Walls - Gotham (Maeryn Schenz Remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  394
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  15800404
                                           'mtime'  1620568956
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Deep Techno electronic techno minimal or deephouse
                                      'tag_artist'  Ten Walls
                                     'tag_release'  None
                                       'tag_title'  Gotham (Maeryn Schenz Remix)
                                             'bpm'  123.9
                                    'search_title'  'gotham':1 'maeryn':2,3 'remix':5,6 'schenz':4
                                   'search_artist'  'ten':1 'walls':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'deep':2 'deephouse':7 'electronic':4 'minimal':5 'or':6 'techno':3
                                    'search_combo'  '00poprockelectronic':9 'deep':10 'deephouse':15 'electronic':12 'gotham':1A 'maeryn':2A,3A 'minimal':13 'or':14 'remix':5A,6A 'schenz':4A 'techno':11 'ten':7B 'walls':8B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'Q-MIXBEAT-3', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'q-piano-1', 'Q-SYN-3', 'q-other-1', 'Q-BUSY-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  ['deep house', 'electronic', 'house', 'lithuanian', 'dub techno']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620568956.2157726  (2021-05-09 16:02:36)
                             'size'  15800404