======================== unified (from filesystem) ========================
                                         'bitrate'  '192.213'
                                        'duration'  '135'
                                          'artist'  'Kano Y Los Bulldogs'
                                     'text_people'  ''
                                         'release'  'Psychodelicias Vol. 10'
                                           'title'  'Carta Para Ti'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-3', 'Q-OLDST-2', 'q-chart-1', 'q-drums-1', 'q-other-3', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-3']")
                                      'lastfmtags'  "['60s', 'pop', 'uruguay', 'rock uruguayo', 'rio de la plata']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'loc-eur-spain;rock-cppex-psychedelic'
                                             'bpm'  '87.748'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000b91 00000b74 00002448'
'COMM:iTunNORM:eng'                                 (' 00000b91 00000b74 00002448 0000235d 000070cc 000070b5 00007945 00007730 '
 '000070e3 0001ad1d')
'TALB' (Album/Movie/Show title)                     'Psychodelicias Vol. 10'
'TBPM' (BPM (beats per minute))                     '87.748'
'TCON' (Content type, a.k.a. Genre)                 ['loc-eur-spain', 'rock-cppex-psychedelic']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Carta Para Ti'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kano Y Los Bulldogs'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['60s', 'pop', 'uruguay', 'rock uruguayo', 'rio de la plata']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.09 dB'
'TXXX:replaygain_track_peak'                        '0.492717'

========================== row from database ==========================
                                              'id'  1412046
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Psychodelicias vol.10 (spanish 60s)/15. Kano Y Los Bulldogs - Carta Para Ti.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  135
                                           'genre'  loc-eur-spain;rock-cppex-psychedelic
                                        'filesize'  3268322
                                           'mtime'  1621629988
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy vol.10 (spanish 60s) 15. loc eur spain;rock cppex psychedelic
                                      'tag_artist'  Kano Y Los Bulldogs
                                     'tag_release'  Psychodelicias Vol. 10
                                       'tag_title'  Carta Para Ti
                                             'bpm'  87.748
                                    'search_title'  'carta':1 'para':2 'ti':3
                                   'search_artist'  'bulldogs':4 'kano':1 'los':3 'y':2
                                  'search_release'  'psychodelicias':1 'vol':2,3
                                     'search_rest'  '10':3 '15':9,10 '60s':7,8 'classicprogpsy':1 'cppex':17 'eur':12 'loc':11 'psychedelic':18 'rock':14,16 'spain':13,15 'spanish':5,6 'vol':2 'vol10':4
                                    'search_combo'  '10':13 '15':19,20 '60s':17,18 'bulldogs':7B 'carta':1A 'classicprogpsy':11 'cppex':27 'eur':22 'kano':4B 'loc':21 'los':6B 'para':2A 'psychedelic':28 'psychodelicias':8C 'rock':24,26 'spain':23,25 'spanish':15,16 'ti':3A 'vol':9C,10C,12 'vol10':14 'y':5B
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'pop', 'uruguay', 'rock uruguayo', 'rio de la plata']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629988.2386336  (2021-05-21 22:46:28)
                             'size'  3268322