======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '164'
                                          'artist'  'Al Bowlly with Lew Stone & His Band'
                                     'text_people'  ''
                                         'release'  'Decca F-6607, DTB-3548-2'
                                           'title'  'The Girl In The Alice Blue Gown'
                                           '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-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swing', 'my lindy music is better than yours', 'lindy hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '130.398'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Decca F-6607, DTB-3548-2'
'TBPM' (BPM (beats per minute))                     '130.398'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'The Girl In The Alice Blue Gown'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '164531'
'TPE1' (Lead performer(s)/Soloist(s))               'Al Bowlly with Lew Stone & His Band'
'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:lastfmtags'                                   ['swing', 'my lindy music is better than yours', 'lindy hop']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.42 dB'
'TXXX:replaygain_track_peak'                        '0.501491'

========================== row from database ==========================
                                              'id'  1155381
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Lew Stone Duriam Dance Band, Al Bowlly - The Girl In The Alice Blue Gown 1938.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  164
                                           'genre'  prerock-swing
                                        'filesize'  2656262
                                           'mtime'  1620559660
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s popular Duriam Dance Band, 1938 prerock swing
                                      'tag_artist'  Al Bowlly with Lew Stone & His Band
                                     'tag_release'  Decca F-6607, DTB-3548-2
                                       'tag_title'  The Girl In The Alice Blue Gown
                                             'bpm'  130.398
                                    'search_title'  'alice':4 'blue':5 'girl':2 'gown':6 'in':3 'the':1
                                   'search_artist'  'al':1 'band':7 'bowlly':2 'his':6 'lew':4 'stone':5 'with':3
                                  'search_release'  '2':7 '3548':6 '6607':3 'decca':1 'dtb':5 'dtb35482':8 'f':2 'f6607':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 '1938':13 'band':11,12 'country':4 'dance':10 'duriam':9 'exotica':2 'jazz':1 'oldies':3 'popular':8 'prerock':14 'swing':15
                                    'search_combo'  '00oldiepop':26 '1920s':27 '1930s':28 '1938':34 '2':20C '3548':19C '6607':16C 'al':7B 'alice':4A 'band':13B,32,33 'blue':5A 'bowlly':8B 'country':25 'dance':31 'decca':14C 'dtb':18C 'dtb35482':21C 'duriam':30 'exotica':23 'f':15C 'f6607':17C 'girl':2A 'gown':6A 'his':12B 'in':3A 'jazz':22 'lew':10B 'oldies':24 'popular':29 'prerock':35 'stone':11B 'swing':36 'the':1A 'with':9B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           '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-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['swing', 'my lindy music is better than yours', 'lindy hop']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620559659.7566762  (2021-05-09 13:27:39)
                             'size'  2656262