======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '164'
                                          'artist'  'Billie Holiday'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I Can't Believe That You're In Love With Me"
                                           '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-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['vocal jazz', 'blues', 'jazz', 'female vocalists', 'jazz vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1938'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '106.0'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '106.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1938-01-06'
'TIT2' (Title/songname/content description)         "I Can't Believe That You're In Love With Me"
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '164000'
'TPE1' (Lead performer(s)/Soloist(s))               'Billie Holiday'
'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'                                   ['vocal jazz', 'blues', 'jazz', 'female vocalists', 'jazz vocal']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.07 dB'
'TXXX:replaygain_track_peak'                        '0.561062'

========================== row from database ==========================
                                              'id'  1498335
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1938/Billie Holiday - I Can_t Believe That You_re In Love With Me 6-1-1938.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  164
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3354617
                                           'mtime'  1620526491
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1938 Can_t You_re 6 1 1938 prerock jb jazz unsorted
                                      'tag_artist'  Billie Holiday
                                     'tag_release'  None
                                       'tag_title'  I Can't Believe That You're In Love With Me
                                             'bpm'  106.0
                                    'search_title'  'believe':5 'can':2 'cant':4 'i':1 'in':10 'love':11 'me':13 're':8 't':3 'that':6 'with':12 'you':7 'youre':9
                                   'search_artist'  'billie':1 'holiday':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1':12 '1938':6 '6':11 'can':7 'country':4 'exotica':2 'jazz':1 'jb':14 'oldies':3 'prerock':13 're':10 't':8 'unsorted':15 'you':9
                                    'search_combo'  '00oldiepop':20 '1':27 '1938':21 '6':26 'believe':5A 'billie':14B 'can':2A,22 'cant':4A 'country':19 'exotica':17 'holiday':15B 'i':1A 'in':10A 'jazz':16 'jb':29 'love':11A 'me':13A 'oldies':18 'prerock':28 're':8A,25 't':3A,23 'that':6A 'unsorted':30 'with':12A 'you':7A,24 'youre':9A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           '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-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['vocal jazz', 'blues', 'jazz', 'female vocalists', 'jazz vocal']
                                        'tag_date'  1938
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526490.6754925  (2021-05-09 04:14:50)
                             'size'  3354617