======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '156'
                                          'artist'  'Ella Fitzgerald'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Sing Me A Swing Song And Let Me Dance'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'jazz', 'female vocalists', 'jazz vocal', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1936'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '84.1'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TBPM' (BPM (beats per minute))                     '84.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1936-06-02'
'TIT2' (Title/songname/content description)         'Sing Me A Swing Song And Let Me Dance'
'TKEY' (Initial key)                                '4A'
'TLEN' (Length)                                     '156000'
'TPE1' (Lead performer(s)/Soloist(s))               'Ella Fitzgerald'
'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:lastfmtags'                                   ['blues', 'jazz', 'female vocalists', 'jazz vocal', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.51 dB'
'TXXX:replaygain_track_peak'                        '0.530436'

========================== row from database ==========================
                                              'id'  1460538
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1936/Ella Fitzgerald - Sing Me A Swing Song And Let Me Dance 2-6-1936.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  156
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3178101
                                           'mtime'  1620526251
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1936 2 6 1936 prerock jb jazz unsorted
                                      'tag_artist'  Ella Fitzgerald
                                     'tag_release'  None
                                       'tag_title'  Sing Me A Swing Song And Let Me Dance
                                             'bpm'  84.1
                                    'search_title'  'a':3 'and':6 'dance':8 'let':7 'me':2 'sing':1 'song':5 'swing':4
                                   'search_artist'  'ella':1 'fitzgerald':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1936':6 '2':7 '6':8 'country':4 'exotica':2 'jazz':1 'jb':10 'oldies':3 'prerock':9 'unsorted':11
                                    'search_combo'  '00oldiepop':15 '1936':16 '2':17 '6':18 'a':3A 'and':6A 'country':14 'dance':8A 'ella':9B 'exotica':12 'fitzgerald':10B 'jazz':11 'jb':20 'let':7A 'me':2A 'oldies':13 'prerock':19 'sing':1A 'song':5A 'swing':4A 'unsorted':21
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['blues', 'jazz', 'female vocalists', 'jazz vocal', 'swing']
                                        'tag_date'  1936
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526251.4164858  (2021-05-09 04:10:51)
                             'size'  3178101