======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '163'
                                          'artist'  'Astrud Gilberto'
                                     'text_people'  'Marcos Valle/Norman Gimbel/Paulo Sérgio Valle'
                                         'release'  "Talkin' Verve"
                                           'title'  'So Nice (Summer Samba)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-3', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['bossa nova', 'fip', 'latin', 'jazz', 'female vocalists', 'brazilian']"
                                     'discogstags'  "['jazz', 'bossa nova', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '123.784'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     "Talkin' Verve"
'TBPM' (BPM (beats per minute))                     '123.784'
'TCOM' (Composer)                                   'Marcos Valle/Norman Gimbel/Paulo Sérgio Valle'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'So Nice (Summer Samba)'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Astrud & Joao Gilberto'
'TPE2' (Band/orchestra/accompaniment)               'Astrud Gilberto'
'TPUB' (Publisher)                                  'Polygram'
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'bossa nova', 'easy listening']
'TXXX:lastfmtags'                                   ['bossa nova', 'fip', 'latin', 'jazz', 'female vocalists', 'brazilian']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.09 dB'
'TXXX:replaygain_track_peak'                        '0.827971'

========================== row from database ==========================
                                              'id'  851230
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/ASTRUD en BEBEL GILBERTO/Astrud & Joao Gilberto - So Nice (Summer Samba).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  163
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  2624160
                                           'mtime'  1620528081
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country ASTRUD en BEBEL GILBERTO & Joao prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Astrud Gilberto
                                     'tag_release'  Talkin' Verve
                                       'tag_title'  So Nice (Summer Samba)
                                             'bpm'  123.784
                                    'search_title'  'nice':2 'samba':5,6 'so':1 'summer':3,4
                                   'search_artist'  'astrud':1 'gilberto':2
                                  'search_release'  'talkin':1,2 'verve':3
                                     'search_rest'  'astrud':5 'bebel':7 'bossa':14 'country':4 'en':6 'exotica':2 'gilberto':8 'jazz':1 'jb':11 'joao':9 'lounge':12 'oldies':3 'or':13 'prerock':10
                                    'search_combo'  'astrud':7B,16 'bebel':18 'bossa':25 'country':15 'en':17 'exotica':13 'gilberto':8B,19 'jazz':12 'jb':22 'joao':20 'lounge':23 'nice':2A 'oldies':14 'or':24 'prerock':21 'samba':5A,6A 'so':1A 'summer':3A,4A 'talkin':9C,10C 'verve':11C
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['bossa nova', 'fip', 'latin', 'jazz', 'female vocalists', 'brazilian']
                                        'tag_date'  1998
                                     'discogstags'  ['jazz', 'bossa nova', 'easy listening']

============================== file details ==============================
                                           'mtime'  1620528080.9070141  (2021-05-09 04:41:20)
                             'size'  2624160