======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '166'
                                          'artist'  'Freddy Martin And His Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'In The Valley Of Yesterday'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['ironman christmas', 'big band', 'jazz', 'spotify', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '194'
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '121.774'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '121.774'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         'In The Valley Of Yesterday'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Freddy Martin And His Orchestra'
'TRCK' (Track number/Position in set)               '194'
'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'                                   ['ironman christmas', 'big band', 'jazz', 'spotify', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                        '+7.03 dB'
'TXXX:replaygain_track_peak'                        '0.264799'

========================== row from database ==========================
                                              'id'  672151
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/078 freddy martin & orchestra - in the valley of yesterday.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  166
                                           'genre'  prerock-swing
                                        'filesize'  2667543
                                           'mtime'  1620560317
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 078 freddy martin & orchestra the valley of yesterday prerock swing
                                      'tag_artist'  Freddy Martin And His Orchestra
                                     'tag_release'  None
                                       'tag_title'  In The Valley Of Yesterday
                                             'bpm'  121.774
                                    'search_title'  'in':1 'of':4 'the':2 'valley':3 'yesterday':5
                                   'search_artist'  'and':3 'freddy':1 'his':4 'martin':2 'orchestra':5
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1934':6 'country':4 'exotica':2 'freddy':7 'jazz':1 'martin':8 'of':12 'oldies':3 'orchestra':9 'prerock':14 'swing':15 'the':10 'valley':11 'yesterday':13
                                    'search_combo'  '00oldiepop':15 '1934':16 'and':8B 'country':14 'exotica':12 'freddy':6B,17 'his':9B 'in':1A 'jazz':11 'martin':7B,18 'of':4A,22 'oldies':13 'orchestra':10B,19 'prerock':24 'swing':25 'the':2A,20 'valley':3A,21 'yesterday':5A,23
                                    'tag_tracknum'  194
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['ironman christmas', 'big band', 'jazz', 'spotify', 'swing']
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560317.2320538  (2021-05-09 13:38:37)
                             'size'  2667543