======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '183'
                                          'artist'  'Teddi King'
                                     'text_people'  ''
                                         'release'  "Lost Female Hits of the 50's"
                                           'title'  'Mr. Wonderful'
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['american', 'jazz', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '144'
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '145.685'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "Lost Female Hits of the 50's"
'TBPM' (BPM (beats per minute))                     '145.685'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1956'
'TIT2' (Title/songname/content description)         'Mr. Wonderful'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Teddi King'
'TRCK' (Track number/Position in set)               '144'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['american', 'jazz', 'female vocalists']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.84 dB'
'TXXX:replaygain_track_peak'                        '0.355459'

========================== row from database ==========================
                                              'id'  1441867
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/1956-144 - Teddi King - Mr. Wonderful.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  183
                                           'genre'  prerock-unsorted
                                        'filesize'  7346048
                                           'mtime'  1620387576
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1956 1956 144 prerock unsorted
                                      'tag_artist'  Teddi King
                                     'tag_release'  Lost Female Hits of the 50's
                                       'tag_title'  Mr. Wonderful
                                             'bpm'  145.685
                                    'search_title'  'mr':1,2 'wonderful':3
                                   'search_artist'  'king':2 'teddi':1
                                  'search_release'  '50':6 '50s':8 'female':2 'hits':3 'lost':1 'of':4 's':7 'the':5
                                     'search_rest'  '00oldiepop':5 '144':7 '1956':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'unsorted':9
                                    'search_combo'  '00oldiepop':18 '144':20 '1956':19 '50':11C '50s':13C 'country':17 'exotica':15 'female':7C 'hits':8C 'jazz':14 'king':5B 'lost':6C 'mr':1A,2A 'of':9C 'oldies':16 'prerock':21 's':12C 'teddi':4B 'the':10C 'unsorted':22 'wonderful':3A
                                    'tag_tracknum'  144
                                      'num_images'  1
                                             'key'  4B
                                           '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-1', 'q-other-2', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['american', 'jazz', 'female vocalists']
                                        'tag_date'  1956
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620387576.4609313  (2021-05-07 13:39:36)
                             'size'  7346048