======================== unified (from filesystem) ========================
                                         'bitrate'  '200.279'
                                        'duration'  '116'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Best Of'
                                           'title'  "(I'll Be) Gone With The Wind"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-LOCALNESS-3', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-namerica-canada;loc-namerica-country'
                                             'bpm'  '123.7'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'\x00z\x01\x0e\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00+\x18\x00\x00\x03\x00\x00\x00Nf\x00\x00\x04\x00\x00\x00\x82\x9d\x00\x00\x05\x00\x00\x00\xa3\xea\x00\x00\x06\x00\x00\x00\xd2\x11\x00\x00\x07\x00\x00\x01\x08e\x00\x00\x08\x00\x00\x01:\xad\x00\x00\t\x00\x00\x01X\xb5\x00\x00\n\x00\x00\x01|\xeb\x00\x00\x0b\x00\x00\x01\x9b\xea\x00\x00\x0c\x00\x00\x01\xd6\xc5\x00\x00\r\x00\x00\x02\x00\xbc\x00\x00\x0e\x00\x00\x02(\xf5\x00\x00\xaa\x00\x00\x02J\xf1')
'TALB' (Album/Movie/Show title)                     'Best Of'
'TBPM' (BPM (beats per minute))                     '123.7'
'TCON' (Content type, a.k.a. Genre)                 ['loc-namerica-canada', 'loc-namerica-country']
'TIT2' (Title/songname/content description)         "(I'll Be) Gone With The Wind"
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               "Stompin' Tom Connors"
'TPE2' (Band/orchestra/accompaniment)               '[unknown]'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+2.67 dB'
'TXXX:replaygain_track_peak'                        '0.605909'

========================== row from database ==========================
                                              'id'  1522439
                                            'path'  /data/Music/Bulk/00spent/Stompin_ Tom Connors/14 (i_ll be) gone with the wind.mp3
                                         'working'  None
                                         'bitrate'  200
                                    'duration_sec'  116
                                           'genre'  loc-namerica-canada;loc-namerica-country
                                        'filesize'  2908061
                                           'mtime'  1621630324
                                   'redo_metaread'  0
                                        'rest_str'   00spent Stompin_ Tom Connors 14 (i_ll be) gone with the wind loc namerica canada;loc namerica country
                                      'tag_artist'  [unknown]
                                     'tag_release'  Best Of
                                       'tag_title'  (I'll Be) Gone With The Wind
                                             'bpm'  123.7
                                    'search_title'  'be':4,5 'gone':6 'i':1 'ill':3 'll':2 'the':8 'wind':9 'with':7
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'best':1 'of':2
                                     'search_rest'  '00spent':1 'be':9,10 'canada':17,19 'connors':4 'country':21 'gone':11 'i':5,7 'll':6,8 'loc':15,18,20 'namerica':16 'stompin':2 'the':13 'tom':3 'wind':14 'with':12
                                    'search_combo'  '00spent':14 'be':4A,5A,22,23 'best':12C 'canada':30,32 'connors':17 'country':34 'gone':6A,24 'i':1A,18,20 'ill':3A 'll':2A,19,21 'loc':28,31,33 'namerica':29 'of':13C 'stompin':15 'the':8A,26 'tom':16 'unknown':10B,11B 'wind':9A,27 'with':7A,25
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630324.44309  (2021-05-21 22:52:04)
                             'size'  2908061