======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '188'
                                          'artist'  'Hal Kemp'
                                     'text_people'  ''
                                         'release'  '20s and 30s popular'
                                           'title'  'Little Red Fox'
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', '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-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'oldies', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1930'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '118.014'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '20s and 30s popular'
'TBPM' (BPM (beats per minute))                     '118.014'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1930'
'TIT2' (Title/songname/content description)         'Little Red Fox'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hal Kemp'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['jazz', 'oldies', 'swing']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.95 dB'
'TXXX:replaygain_track_peak'                        '0.257683'

========================== row from database ==========================
                                              'id'  1512469
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Hal Kemp - Little Red Fox (N_ya Ya Can_t Catch Me).mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  188
                                           'genre'  prerock-unsorted
                                        'filesize'  2650112
                                           'mtime'  1620385411
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s (N_ya Ya Can_t Catch Me) prerock unsorted
                                      'tag_artist'  Hal Kemp
                                     'tag_release'  20s and 30s popular
                                       'tag_title'  Little Red Fox
                                             'bpm'  118.014
                                    'search_title'  'fox':3 'little':1 'red':2
                                   'search_artist'  'hal':1 'kemp':2
                                  'search_release'  '20s':1 '30s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 'can':13 'catch':15 'country':4 'exotica':2 'jazz':1 'me':16,17 'n':8,10 'oldies':3 'prerock':18 't':14 'unsorted':19 'ya':9,11,12
                                    'search_combo'  '00oldiepop':14 '1920s':15 '1930s':16 '20s':6C '30s':8C 'and':7C 'can':22 'catch':24 'country':13 'exotica':11 'fox':3A 'hal':4B 'jazz':10 'kemp':5B 'little':1A 'me':25,26 'n':17,19 'oldies':12 'popular':9C 'prerock':27 'red':2A 't':23 'unsorted':28 'ya':18,20,21
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           '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-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'oldies', 'swing']
                                        'tag_date'  1930
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620385411.263548  (2021-05-07 13:03:31)
                             'size'  2650112