======================== unified (from filesystem) ========================
                                         'bitrate'  '179.176'
                                        'duration'  '160'
                                          'artist'  'Sergio Mendez'
                                     'text_people'  ''
                                         'release'  "Sergio Mendez & Brazil '66 - Greatest Hits"
                                           'title'  'Mas Que Nada'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-3', 'Q-PLAY-2', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-3', 'q-other-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  '["80\'s", \'flashback\', \'pop\']'
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '12'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'loc-style-latin'
                                             'bpm'  '118.152'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '91090D0C'
'COMM:ID3v1 Comment:XXX'                            '91090D0C'
'TALB' (Album/Movie/Show title)                     "Sergio Mendez & Brazil '66 - Greatest Hits"
'TBPM' (BPM (beats per minute))                     '118.152'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-latin'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Mas Que Nada'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sergio Mendez'
'TRCK' (Track number/Position in set)               '1/12'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.92, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ["80's", 'flashback', 'pop']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.57 dB'
'TXXX:replaygain_track_peak'                        '0.500201'

========================== row from database ==========================
                                              'id'  1533825
                                            'path'  /data/Music/Bulk/00localcharacter/Latin/Sergio Mendes & Brasil _66/Sergio Mendez & Brazil '66 - Greatest Hits/Sergio Mendez - Mas Que Nada - 01.mp3
                                         'working'  None
                                         'bitrate'  179
                                    'duration_sec'  160
                                           'genre'  loc-style-latin
                                        'filesize'  3595365
                                           'mtime'  1620592715
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Latin Mendes Brasil _66 01 loc style latin
                                      'tag_artist'  Sergio Mendez
                                     'tag_release'  Sergio Mendez & Brazil '66 - Greatest Hits
                                       'tag_title'  Mas Que Nada
                                             'bpm'  118.152
                                    'search_title'  'mas':1 'nada':3 'que':2
                                   'search_artist'  'mendez':2 'sergio':1
                                  'search_release'  '66':4,5 'brazil':3 'greatest':6 'hits':7 'mendez':2 'sergio':1
                                     'search_rest'  '66':4 'brasil':3 'latin':1 'loc':5 'mendes':2 'style':6
                                    'search_combo'  '66':9C,10C,16 'brasil':15 'brazil':8C 'greatest':11C 'hits':12C 'latin':13 'loc':17 'mas':1A 'mendes':14 'mendez':5B,7C 'nada':3A 'que':2A 'sergio':4B,6C 'style':18
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ["80's", 'flashback', 'pop']
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620592714.799589  (2021-05-09 22:38:34)
                             'size'  3595365