======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '189'
                                          'artist'  'Carlos Gardel'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Suena Guitrarra Querida 9-5-1919'
                                           '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-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['tango argentino', 'argentina', 'latin', 'oldies', 'tango']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1919'
                                        'comments'  ''
                                           'genre'  'loc-samerica-argentina;prerock-vocal'
                                             'bpm'  '141.7'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '141.7'
'TCON' (Content type, a.k.a. Genre)                 ['loc-samerica-argentina', 'prerock-vocal']
'TDRC' (Recording time)                             '1919'
'TIT2' (Title/songname/content description)         'Suena Guitrarra Querida 9-5-1919'
'TKEY' (Initial key)                                '4A'
'TLEN' (Length)                                     '189000'
'TPE1' (Lead performer(s)/Soloist(s))               'Carlos Gardel'
'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:lastfmtags'                                   ['tango argentino', 'argentina', 'latin', 'oldies', 'tango']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+2.37 dB'
'TXXX:replaygain_track_peak'                        '0.408210'

========================== row from database ==========================
                                              'id'  1475779
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/veryearly/1919/Carlos Gardel - Suena Guitrarra Querida 9-5-1919.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  189
                                           'genre'  loc-samerica-argentina;prerock-vocal
                                        'filesize'  3856682
                                           'mtime'  1621629056
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm veryearly loc samerica argentina;prerock vocal
                                      'tag_artist'  Carlos Gardel
                                     'tag_release'  None
                                       'tag_title'  Suena Guitrarra Querida 9-5-1919
                                             'bpm'  141.7
                                    'search_title'  '1919':6 '5':5 '9':4 '951919':7 'guitrarra':2 'querida':3 'suena':1
                                   'search_artist'  'carlos':1 'gardel':2
                                  'search_release'  
                                     'search_rest'  'argentina':4,6 'loc':2 'prerock':5,7 'samerica':3 'veryearly':1 'vocal':8
                                    'search_combo'  '1919':6A '5':5A '9':4A '951919':7A 'argentina':13,15 'carlos':8B 'gardel':9B 'guitrarra':2A 'loc':11 'prerock':14,16 'querida':3A 'samerica':12 'suena':1A 'veryearly':10 'vocal':17
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4A
                                           '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-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['tango argentino', 'argentina', 'latin', 'oldies', 'tango']
                                        'tag_date'  1919
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629056.4850957  (2021-05-21 22:30:56)
                             'size'  3856682