======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '196'
                                          'artist'  'Leo Reisman & His Orchestra'
                                     'text_people'  ''
                                         'release'  '20s and 30s popular'
                                           'title'  'Shine on Your Shoes'
                                           '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'  "['big band', 'jazz', '1401fh', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '2'
                                            'date'  '1932'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '125.006'
                                             'key'  '8A'
                                        'acoustid'  '25e80eba-38ab-4334-a3ed-5549c9def6eb'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:þ\x12\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xfe\x12\x00\x00')
'PRIV:PeakValue:ç}\x00\x00'                         PRIV(owner='PeakValue', data=b'\xe7}\x00\x00')
'TALB' (Album/Movie/Show title)                     '20s and 30s popular'
'TBPM' (BPM (beats per minute))                     '125.006'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDOR' (Original release time)                      '1932'
'TDRC' (Recording time)                             '1932'
'TIT2' (Title/songname/content description)         'Shine on Your Shoes'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Leo Reisman & His Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Leo Reisman & His Orchestra'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Victor Records'
'TRCK' (Track number/Position in set)               '2/2'
'TSO2'                                              'Reisman, Leo & His Orchestra'
'TSOP' (Performer sort order)                       'Reisman, Leo & His Orchestra'
'TXXX:Acoustid Id'                                  '25e80eba-38ab-4334-a3ed-5549c9def6eb'
'TXXX:CATALOGNUMBER'                                '24131'
'TXXX:MusicBrainz Album Artist Id'                  '34b34bab-5ada-4f4b-ba16-adbc6c8cc4a5'
'TXXX:MusicBrainz Album Id'                         '617c0678-a579-426e-aafc-e3fcd6ede650'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'single'
'TXXX:MusicBrainz Artist Id'                        '34b34bab-5ada-4f4b-ba16-adbc6c8cc4a5'
'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:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['big band', 'jazz', '1401fh', 'oldies', 'swing']
'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'                        '+1.88 dB'
'TXXX:replaygain_track_peak'                        '0.491816'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'4e955e75-7f6c-4f57-a496-18d2437e5a68')

========================== row from database ==========================
                                              'id'  1148598
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Leo Reisman & His Casino Royal Orchestra, Lee Wiley - Time On My Hands 1931.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  196
                                           'genre'  prerock-swing
                                        'filesize'  3195142
                                           'mtime'  1620559658
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s Casino Royal Orchestra, Lee Wiley Time On My Hands 1931 prerock swing
                                      'tag_artist'  Leo Reisman & His Orchestra
                                     'tag_release'  20s and 30s popular
                                       'tag_title'  Shine on Your Shoes
                                             'bpm'  125.006
                                    'search_title'  'on':2 'shine':1 'shoes':4 'your':3
                                   'search_artist'  'his':3 'leo':1 'orchestra':4 'reisman':2
                                  'search_release'  '20s':1 '30s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 '1931':18 'casino':8 'country':4 'exotica':2 'hands':17 'jazz':1 'lee':12 'my':16 'oldies':3 'on':15 'orchestra':10,11 'prerock':19 'royal':9 'swing':20 'time':14 'wiley':13
                                    'search_combo'  '00oldiepop':17 '1920s':18 '1930s':19 '1931':30 '20s':9C '30s':11C 'and':10C 'casino':20 'country':16 'exotica':14 'hands':29 'his':7B 'jazz':13 'lee':24 'leo':5B 'my':28 'oldies':15 'on':2A,27 'orchestra':8B,22,23 'popular':12C 'prerock':31 'reisman':6B 'royal':21 'shine':1A 'shoes':4A 'swing':32 'time':26 'wiley':25 'your':3A
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  8A
                                           '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'  ['big band', 'jazz', '1401fh', 'oldies', 'swing']
                                        'tag_date'  1932
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620559657.9933894  (2021-05-09 13:27:37)
                             'size'  3195142