======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '196'
                                          'artist'  'Spike Jones and his City Slickers'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Yes We Have No Bananas'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['fun', 'american', 'comedy', 'jazzysxmas', 'jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1950'
                                        'comments'  ''
                                           'genre'  'prerock-comedy'
                                             'bpm'  '144.748'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '144.748'
'TCON' (Content type, a.k.a. Genre)                 'prerock-comedy'
'TDRC' (Recording time)                             '1950'
'TIT2' (Title/songname/content description)         'Yes We Have No Bananas'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Spike Jones and his City Slickers'
'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'                                   ['fun', 'american', 'comedy', 'jazzysxmas', 'jazz']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+2.72 dB'
'TXXX:replaygain_track_peak'                        '0.596295'

========================== row from database ==========================
                                              'id'  1441496
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1950/Spike Jones and his City Slickers - Yes We Have No Bananas 1950.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  196
                                           'genre'  prerock-comedy
                                        'filesize'  3923762
                                           'mtime'  1636913867
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1950 1950 prerock comedy
                                      'tag_artist'  Spike Jones and his City Slickers
                                     'tag_release'  None
                                       'tag_title'  Yes We Have No Bananas
                                             'bpm'  144.748
                                    'search_title'  'bananas':5 'have':3 'no':4 'we':2 'yes':1
                                   'search_artist'  'and':3 'city':5 'his':4 'jones':2 'slickers':6 'spike':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1950':6 'comedy':8 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7
                                    'search_combo'  '00oldiepop':16 '1950':17 'and':8B 'bananas':5A 'city':10B 'comedy':19 'country':15 'exotica':13 'have':3A 'his':9B 'jazz':12 'jones':7B 'no':4A 'oldies':14 'prerock':18 'slickers':11B 'spike':6B 'we':2A 'yes':1A
                                    'tag_tracknum'  None
                                      '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-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['fun', 'american', 'comedy', 'jazzysxmas', 'jazz']
                                        'tag_date'  1950
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636913866.539096  (2021-11-14 19:17:46)
                             'size'  3923762