======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '419'
                                          'artist'  'Gotan Project'
                                     'text_people'  ''
                                         'release'  'La revancha del tango'
                                           'title'  'Vuelvo al sur'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'downtempo', 'electronic', 'chillout', 'tango']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  ('loc-style-tango or milonga;set-pl-sced;prerock-jb-jazz-lounge or exotica or '
 'bossa')
                                             'bpm'  '98.9'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000303 00000493 000032DF 00003CAE 00061A97 00061A97 00008000 00008000 '
 '00053065 0000EAA5')
'TALB' (Album/Movie/Show title)                     'La revancha del tango'
'TBPM' (BPM (beats per minute))                     '98.9'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-tango or milonga',
 'set-pl-sced',
 'prerock-jb-jazz-lounge or exotica or bossa']
'TDRC' (Recording time)                             '2001'
'TENC' (Encoded by)                                 'FreeRIP 2.942'
'TIT2' (Title/songname/content description)         'Vuelvo al sur'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gotan Project'
'TPE2' (Band/orchestra/accompaniment)               'Gotan Project'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['lounge', 'downtempo', 'electronic', 'chillout', 'tango']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.18 dB'
'TXXX:replaygain_track_peak'                        '0.624180'

========================== row from database ==========================
                                              'id'  1361756
                                            'path'  /data/Music/Bulk/00poprockelectronic/Gotan Project/[2001] La revancha del tango/10 Vuelvo al sur.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  419
                                           'genre'  loc-style-tango or milonga;set-pl-sced;prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  16785537
                                           'mtime'  1620540839
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [2001] 10 loc style or milonga;set pl sced;prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Gotan Project
                                     'tag_release'  La revancha del tango
                                       'tag_title'  Vuelvo al sur
                                             'bpm'  98.9
                                    'search_title'  'al':2 'sur':3 'vuelvo':1
                                   'search_artist'  'gotan':1 'project':2
                                  'search_release'  'del':3 'la':1 'revancha':2 'tango':4
                                     'search_rest'  '00poprockelectronic':1 '2001':2,3 'bossa':20 'exotica':19 'jazz':17 'jb':16 'loc':4 'lounge':18 'milonga':7,9 'or':6 'pl':11 'prerock':13,15 'sced':12,14 'set':8,10 'style':5
                                    'search_combo'  '00poprockelectronic':10 '2001':11,12 'al':2A 'bossa':29 'del':8C 'exotica':28 'gotan':4B 'jazz':26 'jb':25 'la':6C 'loc':13 'lounge':27 'milonga':16,18 'or':15 'pl':20 'prerock':22,24 'project':5B 'revancha':7C 'sced':21,23 'set':17,19 'style':14 'sur':3A 'tango':9C 'vuelvo':1A
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['lounge', 'downtempo', 'electronic', 'chillout', 'tango']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620540839.3748178  (2021-05-09 08:13:59)
                             'size'  16785537