======================== unified (from filesystem) ========================
                                         'bitrate'  '209.476'
                                        'duration'  '171'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Best Of'
                                           'title'  'The Old Atlantic Shore'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-LOCALNESS-3', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-3', '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'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-namerica-canada;loc-namerica-country'
                                             'bpm'  '141.1'
                                             'key'  '1A'
                                        '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))                     '141.1'
'TCON' (Content type, a.k.a. Genre)                 ['loc-namerica-canada', 'loc-namerica-country']
'TIT2' (Title/songname/content description)         'The Old Atlantic Shore'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               "Stompin' Tom Connors"
'TPE2' (Band/orchestra/accompaniment)               '[unknown]'
'TRCK' (Track number/Position in set)               '7'
'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'                                       '3'
'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'                        '+2.16 dB'
'TXXX:replaygain_track_peak'                        '0.463114'

========================== row from database ==========================
                                              'id'  1524982
                                            'path'  /data/Music/Bulk/00spent/Stompin_ Tom Connors/07 the old atlantic shore.mp3
                                         'working'  None
                                         'bitrate'  209
                                    'duration_sec'  171
                                           'genre'  loc-namerica-canada;loc-namerica-country
                                        'filesize'  4498429
                                           'mtime'  1621630324
                                   'redo_metaread'  0
                                        'rest_str'   00spent Stompin_ Tom Connors 07 the old atlantic shore loc namerica canada;loc namerica country
                                      'tag_artist'  [unknown]
                                     'tag_release'  Best Of
                                       'tag_title'  The Old Atlantic Shore
                                             'bpm'  141.1
                                    'search_title'  'atlantic':3 'old':2 'shore':4 'the':1
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'best':1 'of':2
                                     'search_rest'  '00spent':1 'atlantic':7 'canada':11,13 'connors':4 'country':15 'loc':9,12,14 'namerica':10 'old':6 'shore':8 'stompin':2 'the':5 'tom':3
                                    'search_combo'  '00spent':9 'atlantic':3A,15 'best':7C 'canada':19,21 'connors':12 'country':23 'loc':17,20,22 'namerica':18 'of':8C 'old':2A,14 'shore':4A,16 'stompin':10 'the':1A,13 'tom':11 'unknown':5B,6B
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  1A
                                           '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-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630324.3390326  (2021-05-21 22:52:04)
                             'size'  4498429