======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '168'
                                          'artist'  'coon sanders'
                                     'text_people'  ''
                                         'release'  '1920s and 1930s popular'
                                           'title'  "who wouldn't B jealous of U?"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', '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-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'  '1928'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '114.156'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '1920s and 1930s popular'
'TBPM' (BPM (beats per minute))                     '114.156'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1928'
'TIT2' (Title/songname/content description)         "who wouldn't B jealous of U?"
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'coon sanders'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'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'                        '+2.17 dB'
'TXXX:replaygain_track_peak'                        '0.710102'

========================== row from database ==========================
                                              'id'  1503227
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Coon Sander_s Nighthawks - Who Wouldn_t Be Jealous Of You - 1928.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  168
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  2727943
                                           'mtime'  1620524470
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop Coon Sander_s Nighthawks Who Wouldn_t Be Jealous Of You 1928 prerock jb jazz unsorted
                                      'tag_artist'  coon sanders
                                     'tag_release'  1920s and 1930s popular
                                       'tag_title'  who wouldn't B jealous of U?
                                             'bpm'  114.156
                                    'search_title'  'b':5 'jealous':6 'of':7 't':3 'u':8 'who':1 'wouldn':2 'wouldnt':4
                                   'search_artist'  'coon':1 'sanders':2
                                  'search_release'  '1920s':1 '1930s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1928':17 'be':13 'coon':6 'country':4 'exotica':2 'jazz':1 'jb':19 'jealous':14 'nighthawks':9 'of':15 'oldies':3 'prerock':18 's':8 'sander':7 't':12 'unsorted':20 'who':10 'wouldn':11 'you':16
                                    'search_combo'  '00oldiepop':19 '1920s':11C '1928':31 '1930s':13C 'and':12C 'b':5A 'be':27 'coon':9B,20 'country':18 'exotica':16 'jazz':15 'jb':33 'jealous':6A,28 'nighthawks':23 'of':7A,29 'oldies':17 'popular':14C 'prerock':32 's':22 'sander':21 'sanders':10B 't':3A,26 'u':8A 'unsorted':34 'who':1A,24 'wouldn':2A,25 'wouldnt':4A 'you':30
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', '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-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1928
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524470.1253307  (2021-05-09 03:41:10)
                             'size'  2727943