======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '156'
                                          'artist'  'Los Zooms'
                                     'text_people'  ''
                                         'release'  'Psychodelicias Vol. 3'
                                           'title'  'La Droga'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'q-chart-1', 'q-drums-1', 'q-other-4', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['pop art']"
                                     'discogstags'  "['beat', 'psychedelic rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '19'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic'
                                             'bpm'  '137.665'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000323 00000607 00001720'
'COMM:iTunNORM:eng'                                 (' 00000323 00000607 00001720 0000283F 0001E886 00008129 00005CA5 00007DFF '
 '0001E8FA 0001ED3E')
'TALB' (Album/Movie/Show title)                     'Psychodelicias Vol. 3'
'TBPM' (BPM (beats per minute))                     '137.665'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-psychedelic'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'La Droga'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Los Zooms'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '9/19'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['beat', 'psychedelic rock', 'rock']
'TXXX:lastfmtags'                                   'pop art'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.89 dB'
'TXXX:replaygain_track_peak'                        '0.696045'

========================== row from database ==========================
                                              'id'  1416757
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Psychodelicias vol.03 (spanish 60s)/09 La Droga.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  156
                                           'genre'  rock-cppex-psychedelic
                                        'filesize'  3504913
                                           'mtime'  1620736814
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy vol.03 (spanish 60s) 09 rock cppex psychedelic
                                      'tag_artist'  Los Zooms
                                     'tag_release'  Psychodelicias Vol. 3
                                       'tag_title'  La Droga
                                             'bpm'  137.665
                                    'search_title'  'droga':2 'la':1
                                   'search_artist'  'los':1 'zooms':2
                                  'search_release'  '3':4 'psychodelicias':1 'vol':2,3
                                     'search_rest'  '03':3 '60s':7,8 'classicprogpsy':1 'cppex':10 'psychedelic':11 'rock':9 'spanish':5,6 'vol':2 'vol03':4
                                    'search_combo'  '03':11 '3':8C '60s':15,16 'classicprogpsy':9 'cppex':18 'droga':2A 'la':1A 'los':3B 'psychedelic':19 'psychodelicias':5C 'rock':17 'spanish':13,14 'vol':6C,7C,10 'vol03':12 'zooms':4B
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['pop art']
                                        'tag_date'  1965
                                     'discogstags'  ['beat', 'psychedelic rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620736813.7102926  (2021-05-11 14:40:13)
                             'size'  3504913