======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '194'
                                          'artist'  'Glenn Miller v-Tex Beneke, Marion Hutton'
                                     'text_people'  'Mack Gordon, Harry Warren'
                                         'release'  'The Golden Years: 1938-1942 (4 of 4)'
                                           'title'  "I've Got A Gal In Kalamazoo (1942)"
                                           'quals'  ("['Q-OLDST-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'set-pl-spelling'
                                             'bpm'  '131.243'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:Amadeus II 3.5:pdat\x00\x00\x00\x1cAHCGDGCHAAAAAAGAAAKMPDAIAAAA'  PRIV(owner='Amadeus II 3.5', data=b'pdat\x00\x00\x00\x1cAHCGDGCHAAAAAAGAAAKMPDAIAAAA')
'TALB' (Album/Movie/Show title)                     'The Golden Years: 1938-1942 (4 of 4)'
'TBPM' (BPM (beats per minute))                     '131.243'
'TCOM' (Composer)                                   'Mack Gordon, Harry Warren'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-spelling'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         "I've Got A Gal In Kalamazoo (1942)"
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Glenn Miller v-Tex Beneke, Marion Hutton'
'TRCK' (Track number/Position in set)               '18'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.62 dB'
'TXXX:replaygain_track_peak'                        '0.452763'

========================== row from database ==========================
                                              'id'  1497151
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/Glenn Miller, voc Tex Beneke & Marion Hutton - I_ve Got A Gal In Kalamazoo.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  194
                                           'genre'  set-pl-spelling
                                        'filesize'  2346399
                                           'mtime'  1620356337
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling Miller, voc & I_ve set pl spelling
                                      'tag_artist'  Glenn Miller v-Tex Beneke, Marion Hutton
                                     'tag_release'  The Golden Years: 1938-1942 (4 of 4)
                                       'tag_title'  I've Got A Gal In Kalamazoo (1942)
                                             'bpm'  131.243
                                    'search_title'  '1942':9,10 'a':5 'gal':6 'got':4 'i':1 'in':7 'ive':3 'kalamazoo':8 've':2
                                   'search_artist'  'beneke':6,7 'glenn':1 'hutton':9 'marion':8 'miller':2 'tex':4 'v':3 'vtex':5
                                  'search_release'  '1938':5 '19381942':7 '1942':6 '4':8,9,11 'golden':2 'of':10 'the':1 'years':3,4
                                     'search_rest'  '0novelty':2 '0playlists':1 'i':8 'miller':5,6 'pl':11 'set':10 'spelling':4 'themes':3 've':9 'voc':7
                                    'search_combo'  '0novelty':32 '0playlists':31 '1938':24C '19381942':26C '1942':9A,10A,25C '4':27C,28C,30C 'a':5A 'beneke':16B,17B 'gal':6A 'glenn':11B 'golden':21C 'got':4A 'hutton':19B 'i':1A,38 'in':7A 'ive':3A 'kalamazoo':8A 'marion':18B 'miller':12B,35,36 'of':29C 'pl':41 'set':40 'spelling':34 'tex':14B 'the':20C 'themes':33 'v':13B 've':2A,39 'voc':37 'vtex':15B 'years':22C,23C
                                    'tag_tracknum'  18
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620356336.6792254  (2021-05-07 04:58:56)
                             'size'  2346399