======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '153'
                                          'artist'  'Alfredo Malerba-Libertad Lamarque'
                                     'text_people'  'R.Schiammarella - A.Malherba'
                                         'release'  'french tanguerooo'
                                           'title'  'Besos Brujos'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-style-tango or milonga'
                                             'bpm'  '98.549'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
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'PRIV:WM/WMCollectionGroupID:|E([p@þL\x9e·ß¯x\x82ýê'  PRIV(owner='WM/WMCollectionGroupID', data=b'|E([p@\xfeL\x9e\xb7\xdf\xafx\x82\xfd\xea')
'PRIV:WM/WMCollectionID:|E([p@þL\x9e·ß¯x\x82ýê'     PRIV(owner='WM/WMCollectionID', data=b'|E([p@\xfeL\x9e\xb7\xdf\xafx\x82\xfd\xea')
'PRIV:WM/WMContentID:{{Ïñ\x14»mI\x80jÂ\x81\x01\x13Q®'  PRIV(owner='WM/WMContentID', data=b'{{\xcf\xf1\x14\xbbmI\x80j\xc2\x81\x01\x13Q\xae')
'TALB' (Album/Movie/Show title)                     'french tanguerooo'
'TBPM' (BPM (beats per minute))                     '98.549'
'TCOM' (Composer)                                   'R.Schiammarella - A.Malherba'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-tango or milonga'
'TDRC' (Recording time)                             '1945'
'TENC' (Encoded by)                                 'FrenchTanguero'
'TIT2' (Title/songname/content description)         'Besos Brujos'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Alfredo Malerba-Libertad Lamarque'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Milan/Latino'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.41 dB'
'TXXX:replaygain_track_peak'                        '0.418710'

========================== row from database ==========================
                                              'id'  924935
                                            'path'  /data/Music/Bulk/00localcharacter/french tanguerooo/alfredo malerba-libertad lamarque - besos brujos.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  153
                                           'genre'  loc-style-tango or milonga
                                        'filesize'  3675703
                                           'mtime'  1620528275
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter alfredo malerba libertad lamarque besos brujos loc style tango or milonga
                                      'tag_artist'  Alfredo Malerba-Libertad Lamarque
                                     'tag_release'  french tanguerooo
                                       'tag_title'  Besos Brujos
                                             'bpm'  98.549
                                    'search_title'  'besos':1 'brujos':2
                                   'search_artist'  'alfredo':1 'lamarque':5 'libertad':3 'malerba':2 'malerbalibertad':4
                                  'search_release'  'french':1 'tanguerooo':2
                                     'search_rest'  'alfredo':1 'besos':5 'brujos':6 'lamarque':4 'libertad':3 'loc':7 'malerba':2 'milonga':11 'or':10 'style':8 'tango':9
                                    'search_combo'  'alfredo':3B,10 'besos':1A,14 'brujos':2A,15 'french':8C 'lamarque':7B,13 'libertad':5B,12 'loc':16 'malerba':4B,11 'malerbalibertad':6B 'milonga':20 'or':19 'style':17 'tango':18 'tanguerooo':9C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528274.5587556  (2021-05-09 04:44:34)
                             'size'  3675703