======================== unified (from filesystem) ========================
                                         'bitrate'  '164.739'
                                        'duration'  '258'
                                          'artist'  'David Stewart'
                                     'text_people'  ''
                                         'release'  'Greatest Hits 1990'
                                           'title'  'Lily was here'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-3']")
                                      'lastfmtags'  "['soul', 'ambient', 'electronic', 'uk', 'london']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '16'
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '108.066'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             'DF10A310'
'COMM:ID3v1 Comment:XXX'                            'DF10A310'
'TALB' (Album/Movie/Show title)                     'Greatest Hits 1990'
'TBPM' (BPM (beats per minute))                     '108.066'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Lily was here'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'David Stewart'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4/16'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, VBR 3, Stereo, High quality'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soul', 'ambient', 'electronic', 'uk', 'london']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.31 dB'
'TXXX:replaygain_track_peak'                        '0.725434'

========================== row from database ==========================
                                              'id'  1403676
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Greatest Hits 1990/David Stewart - 04 - Lily was here.mp3
                                         'working'  None
                                         'bitrate'  164
                                    'duration_sec'  258
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  5316066
                                           'mtime'  1620558571
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 04 electronic generic or radio dance
                                      'tag_artist'  David Stewart
                                     'tag_release'  Greatest Hits 1990
                                       'tag_title'  Lily was here
                                             'bpm'  108.066
                                    'search_title'  'here':3 'lily':1 'was':2
                                   'search_artist'  'david':1 'stewart':2
                                  'search_release'  '1990':3 'greatest':1 'hits':2
                                     'search_rest'  '00poprockelectronic':1 'dance':3 'electronic':5 'generic':2 'or':6 'radio':7 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':9 '1990':8C 'dance':11 'david':4B 'electronic':13 'generic':10 'greatest':6C 'here':3A 'hits':7C 'lily':1A 'or':14 'radio':15 'stewart':5B 'trapbeat':12 'was':2A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           '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-3', 'q-syn-3', 'q-chart-3', 'q-other-4', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'ambient', 'electronic', 'uk', 'london']
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620558570.9015038  (2021-05-09 13:09:30)
                             'size'  5316066