======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '193'
                                          'artist'  'Malando'
                                     'text_people'  ''
                                         'release'  'Decca M 32471'
                                           'title'  'Cae Cae (vocal - Ann Sandor)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['best', 'sommer', 'scrobbled from vinyl', 'tango']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1948'
                                        'comments'  ''
                                           'genre'  'prerock-latin'
                                             'bpm'  '117.398'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Decca M 32471'
'TBPM' (BPM (beats per minute))                     '117.398'
'TCON' (Content type, a.k.a. Genre)                 'prerock-latin'
'TDRC' (Recording time)                             '1948'
'TIT2' (Title/songname/content description)         'Cae Cae (vocal - Ann Sandor)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Malando'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['best', 'sommer', 'scrobbled from vinyl', 'tango']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.97 dB'
'TXXX:replaygain_track_peak'                        '0.563345'

========================== row from database ==========================
                                              'id'  1444559
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1948/Malando - Cae Cae (vocal - Ann Sandor) -11-1948.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  193
                                           'genre'  prerock-latin
                                        'filesize'  3866434
                                           'mtime'  1621705292
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1948 11 1948 prerock latin
                                      'tag_artist'  Malando
                                     'tag_release'  Decca M 32471
                                       'tag_title'  Cae Cae (vocal - Ann Sandor)
                                             'bpm'  117.398
                                    'search_title'  'ann':4 'cae':1 'sandor':5,6 'vocal':2,3
                                   'search_artist'  'malando':1
                                  'search_release'  '32471':3 'decca':1 'm':2
                                     'search_rest'  '00oldiepop':5 '1948':6 'country':4 'exotica':2 'jazz':1 'latin':8 'oldies':3 'prerock':7
                                    'search_combo'  '00oldiepop':15 '1948':16 '32471':10C 'ann':4A 'cae':1A 'country':14 'decca':8C 'exotica':12 'jazz':11 'latin':18 'm':9C 'malando':7B 'oldies':13 'prerock':17 'sandor':5A,6A 'vocal':2A,3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['best', 'sommer', 'scrobbled from vinyl', 'tango']
                                        'tag_date'  1948
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705292.1861708  (2021-05-22 19:41:32)
                             'size'  3866434