======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '158'
                                          'artist'  'Ozzie Nelson Orch.'
                                     'text_people'  ''
                                         'release'  'Ozzie Nelson'
                                           'title'  'IN THE DIM DIM DAWNING'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', '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-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '144.955'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Ozzie Nelson'
'TBPM' (BPM (beats per minute))                     '144.955'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'IN THE DIM DIM DAWNING'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '157975'
'TPE1' (Lead performer(s)/Soloist(s))               'Ozzie Nelson Orch.'
'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: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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+3.80 dB'
'TXXX:replaygain_track_peak'                        '0.422539'

========================== row from database ==========================
                                              'id'  1150050
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Ozzie Nelson Orch (Ozzie Nelson & Harriet Hilyard vocal) - In The Dim, Dim, Dawning.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  158
                                           'genre'  prerock-swing
                                        'filesize'  2547999
                                           'mtime'  1620559681
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s and 1930s popular (Ozzie & Harriet Hilyard vocal) In The Dim, Dim, Dawning prerock swing
                                      'tag_artist'  Ozzie Nelson Orch.
                                     'tag_release'  Ozzie Nelson
                                       'tag_title'  IN THE DIM DIM DAWNING
                                             'bpm'  144.955
                                    'search_title'  'dawning':4 'dim':3 'in':1 'the':2
                                   'search_artist'  'nelson':2 'orch':3,4 'ozzie':1
                                  'search_release'  'nelson':2 'ozzie':1
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':8 'and':7 'country':4 'dawning':20 'dim':18,19 'exotica':2 'harriet':12 'hilyard':13 'in':16 'jazz':1 'oldies':3 'ozzie':10,11 'popular':9 'prerock':21 'swing':22 'the':17 'vocal':14,15
                                    'search_combo'  '00oldiepop':15 '1920s':16 '1930s':18 'and':17 'country':14 'dawning':4A,30 'dim':3A,28,29 'exotica':12 'harriet':22 'hilyard':23 'in':1A,26 'jazz':11 'nelson':6B,10C 'oldies':13 'orch':7B,8B 'ozzie':5B,9C,20,21 'popular':19 'prerock':31 'swing':32 'the':2A,27 'vocal':24,25
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           '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-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620559681.173461  (2021-05-09 13:28:01)
                             'size'  2547999