======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '169'
                                          'artist'  'Red Nichols and his Five Pennies, Miff Mole on trombone, (no Bix)'
                                     'text_people'  ''
                                         'release'  '1920s and 1930s popular'
                                           'title'  'How Come You Do Me Like You Do'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', '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-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '144.955'
                                             'key'  '8A'
                                        '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))                     '144.955'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'How Come You Do Me Like You Do'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Red Nichols and his Five Pennies, Miff Mole on trombone, (no Bix)'
'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'                                       '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'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.03 dB'
'TXXX:replaygain_track_peak'                        '0.637643'

========================== row from database ==========================
                                              'id'  1151887
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Red Nichols and his Five Pennies, Miff Mole on trombone, (no Bix) - How Come You Do Me Like You Do.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  169
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  2736674
                                           'mtime'  1620524775
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop prerock jb jazz unsorted
                                      'tag_artist'  Red Nichols and his Five Pennies, Miff Mole on trombone, (no Bix)
                                     'tag_release'  1920s and 1930s popular
                                       'tag_title'  How Come You Do Me Like You Do
                                             'bpm'  144.955
                                    'search_title'  'come':2 'do':4 'how':1 'like':6 'me':5 'you':3
                                   'search_artist'  'and':3 'bix':15,16 'five':5 'his':4 'miff':8 'mole':9 'nichols':2 'no':13,14 'on':10 'pennies':6,7 'red':1 'trombone':11,12
                                  'search_release'  '1920s':1 '1930s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'jb':7 'oldies':3 'prerock':6 'unsorted':8
                                    'search_combo'  '00oldiepop':31 '1920s':23C '1930s':25C 'and':9B,24C 'bix':21B,22B 'come':2A 'country':30 'do':4A 'exotica':28 'five':11B 'his':10B 'how':1A 'jazz':27 'jb':33 'like':6A 'me':5A 'miff':14B 'mole':15B 'nichols':8B 'no':19B,20B 'oldies':29 'on':16B 'pennies':12B,13B 'popular':26C 'prerock':32 'red':7B 'trombone':17B,18B 'unsorted':34 'you':3A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524775.2162328  (2021-05-09 03:46:15)
                             'size'  2736674