======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '153'
                                          'artist'  'Red Norvo and His Orchestra'
                                     'text_people'  ''
                                         'release'  '1920s and 1930s popular'
                                           'title'  'Please Be Kind'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['instrumental', 'clarinet solo', 'unique instrumentation', 'acoustic piano "
 "accompaniment', 'big band arrangements']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '106.085'
                                             'key'  '11A'
                                        'acoustid'  '4f16e50a-acab-4ea1-8d1b-dc06f3849c4e'
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))                     '106.085'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Please Be Kind'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '153104'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Red Norvo and His Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Classics Records'
'TSO2'                                              'Norvo, Red and His Orchestra'
'TSOP' (Performer sort order)                       'Norvo, Red and His Orchestra'
'TXXX:ASIN'                                         'B00007GWZV'
'TXXX:Acoustid Id'                                  '4f16e50a-acab-4ea1-8d1b-dc06f3849c4e'
'TXXX:BARCODE'                                      '3307517115720'
'TXXX:CATALOGNUMBER'                                '1157'
'TXXX:MusicBrainz Artist Id'                        '6c211486-5576-4467-87cc-ed7eee7c59cb'
'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:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['instrumental',
 'clarinet solo',
 'unique instrumentation',
 'acoustic piano accompaniment',
 'big band arrangements']
'TXXX:q-bass'                                       '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.38 dB'
'TXXX:replaygain_track_peak'                        '0.601999'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'21ee8f6b-7516-40a5-b72a-8a4357874dfb')

========================== row from database ==========================
                                              'id'  1137341
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Red Norvo All Star Sextett, Mildred Bailey - Please Be Kind 1938.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  153
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  2465792
                                           'mtime'  1620524776
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop All Star Sextett, Mildred Bailey 1938 prerock jb jazz unsorted
                                      'tag_artist'  Red Norvo and His Orchestra
                                     'tag_release'  1920s and 1930s popular
                                       'tag_title'  Please Be Kind
                                             'bpm'  106.085
                                    'search_title'  'be':2 'kind':3 'please':1
                                   'search_artist'  'and':3 'his':4 'norvo':2 'orchestra':5 'red':1
                                  'search_release'  '1920s':1 '1930s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1938':12 'all':6 'bailey':11 'country':4 'exotica':2 'jazz':1 'jb':14 'mildred':10 'oldies':3 'prerock':13 'sextett':8,9 'star':7 'unsorted':15
                                    'search_combo'  '00oldiepop':17 '1920s':9C '1930s':11C '1938':24 'all':18 'and':6B,10C 'bailey':23 'be':2A 'country':16 'exotica':14 'his':7B 'jazz':13 'jb':26 'kind':3A 'mildred':22 'norvo':5B 'oldies':15 'orchestra':8B 'please':1A 'popular':12C 'prerock':25 'red':4B 'sextett':20,21 'star':19 'unsorted':27
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'clarinet solo', 'unique instrumentation', 'acoustic piano accompaniment', 'big band arrangements']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524775.5994627  (2021-05-09 03:46:15)
                             'size'  2465792