======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '167'
                                          'artist'  'Malando'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Mio Tio Juan (vocal - Ann Sandor)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', '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'  '1952'
                                        'comments'  ''
                                           'genre'  'prerock-latin'
                                             'bpm'  '120.399'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '120.399'
'TCON' (Content type, a.k.a. Genre)                 'prerock-latin'
'TDRC' (Recording time)                             '1952'
'TIT2' (Title/songname/content description)         'Mio Tio Juan (vocal - Ann Sandor)'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Malando'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['best', 'sommer', 'scrobbled from vinyl', 'tango']
'TXXX:q-bass'                                       '2'
'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'                        '+0.99 dB'
'TXXX:replaygain_track_peak'                        '0.570183'

========================== row from database ==========================
                                              'id'  1428127
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1952/Malando - Mio Tio Juan (vocal - Ann Sandor) 1952.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  167
                                           'genre'  prerock-latin
                                        'filesize'  3352375
                                           'mtime'  1636916545
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1952 1952 prerock latin
                                      'tag_artist'  Malando
                                     'tag_release'  None
                                       'tag_title'  Mio Tio Juan (vocal - Ann Sandor)
                                             'bpm'  120.399
                                    'search_title'  'ann':6 'juan':3 'mio':1 'sandor':7,8 'tio':2 'vocal':4,5
                                   'search_artist'  'malando':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1952':6 'country':4 'exotica':2 'jazz':1 'latin':8 'oldies':3 'prerock':7
                                    'search_combo'  '00oldiepop':14 '1952':15 'ann':6A 'country':13 'exotica':11 'jazz':10 'juan':3A 'latin':17 'malando':9B 'mio':1A 'oldies':12 'prerock':16 'sandor':7A,8A 'tio':2A 'vocal':4A,5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           '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-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['best', 'sommer', 'scrobbled from vinyl', 'tango']
                                        'tag_date'  1952
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636916544.579983  (2021-11-14 20:02:24)
                             'size'  3352375