======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '203'
                                          'artist'  'Ben Pollack & His Californians/Benny Goodman'
                                     'text_people'  ''
                                         'release'  '1920s and 1930s popular'
                                           'title'  "'Deed I 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'  '1937'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '99.031'
                                             'key'  '7A'
                                        '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))                     '99.031'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1937'
'TIT2' (Title/songname/content description)         "'Deed I Do"
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '203683'
'TPE1' (Lead performer(s)/Soloist(s))               'Ben Pollack & His Californians/Benny Goodman'
'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'                        '+2.23 dB'
'TXXX:replaygain_track_peak'                        '0.835032'

========================== row from database ==========================
                                              'id'  1497273
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Ben Pollack & His Californians, With Benny Goodman - _Deed I Do 1927.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  203
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3313739
                                           'mtime'  1620524259
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop Californians, With _Deed 1927 prerock jb jazz unsorted
                                      'tag_artist'  Ben Pollack & His Californians/Benny Goodman
                                     'tag_release'  1920s and 1930s popular
                                       'tag_title'  'Deed I Do
                                             'bpm'  99.031
                                    'search_title'  'deed':1,2 'do':4 'i':3
                                   'search_artist'  'ben':1 'benny':5 'californians':4 'californiansbenny':6 'goodman':7 'his':3 'pollack':2
                                  'search_release'  '1920s':1 '1930s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1927':10 'californians':6,7 'country':4 'deed':9 'exotica':2 'jazz':1 'jb':12 'oldies':3 'prerock':11 'unsorted':13 'with':8
                                    'search_combo'  '00oldiepop':20 '1920s':12C '1927':25 '1930s':14C 'and':13C 'ben':5B 'benny':9B 'californians':8B,21,22 'californiansbenny':10B 'country':19 'deed':1A,2A,24 'do':4A 'exotica':17 'goodman':11B 'his':7B 'i':3A 'jazz':16 'jb':27 'oldies':18 'pollack':6B 'popular':15C 'prerock':26 'unsorted':28 'with':23
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7A
                                           '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'  1937
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524259.1571498  (2021-05-09 03:37:39)
                             'size'  3313739