======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '78'
                                          'artist'  'Shirley Temple'
                                     'text_people'  ''
                                         'release'  "1930's rare and popular music"
                                           'title'  'Be Optimistic'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', '30s', 'kids', 'female vocalists', 'american']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-female'
                                             'bpm'  '144.955'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "1930's rare and popular music"
'TBPM' (BPM (beats per minute))                     '144.955'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-female'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Be Optimistic'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '78445'
'TPE1' (Lead performer(s)/Soloist(s))               'Shirley Temple'
'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'                                   ['soundtrack', '30s', 'kids', 'female vocalists', 'american']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                        '+1.97 dB'
'TXXX:replaygain_track_peak'                        '0.421821'

========================== row from database ==========================
                                              'id'  1134763
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Shirley Temple - Be Optimistic.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  78
                                           'genre'  prerock-vocal-female
                                        'filesize'  1112169
                                           'mtime'  1621625695
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s prerock vocal female
                                      'tag_artist'  Shirley Temple
                                     'tag_release'  1930's rare and popular music
                                       'tag_title'  Be Optimistic
                                             'bpm'  144.955
                                    'search_title'  'be':1 'optimistic':2
                                   'search_artist'  'shirley':1 'temple':2
                                  'search_release'  '1930':1 '1930s':3 'and':5 'music':7 'popular':6 'rare':4 's':2
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 'country':4 'exotica':2 'female':10 'jazz':1 'oldies':3 'prerock':8 'vocal':9
                                    'search_combo'  '00oldiepop':16 '1920s':17 '1930':5C '1930s':7C,18 'and':9C 'be':1A 'country':15 'exotica':13 'female':21 'jazz':12 'music':11C 'oldies':14 'optimistic':2A 'popular':10C 'prerock':19 'rare':8C 's':6C 'shirley':3B 'temple':4B 'vocal':20
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             '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-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['soundtrack', '30s', 'kids', 'female vocalists', 'american']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625694.754699  (2021-05-21 21:34:54)
                             'size'  1112169