======================== unified (from filesystem) ========================
                                         'bitrate'  '134.74'
                                        'duration'  '177'
                                          'artist'  'Charley Vaughn'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Father's a Drunkard and Mother Is Dead"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['country', 'folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1929'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '99.274'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '99.274'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1929'
'TIT2' (Title/songname/content description)         "Father's a Drunkard and Mother Is Dead"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Charley Vaughn'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['country', 'folk, world, & country']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'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'                        '+1.64 dB'
'TXXX:replaygain_track_peak'                        '0.502392'

========================== row from database ==========================
                                              'id'  1518944
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Charley Vaughn - Father_s a Drunkard and Mother is Dead 1929.wma.mp3
                                         'working'  None
                                         'bitrate'  134
                                    'duration_sec'  177
                                           'genre'  loc-namerica-country
                                        'filesize'  2985503
                                           'mtime'  1621628042
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music Father_s is 1929.wma loc namerica country
                                      'tag_artist'  Charley Vaughn
                                     'tag_release'  None
                                       'tag_title'  Father's a Drunkard and Mother Is Dead
                                             'bpm'  99.274
                                    'search_title'  'a':4 'and':6 'dead':9 'drunkard':5 'father':1 'fathers':3 'is':8 'mother':7 's':2
                                   'search_artist'  'charley':1 'vaughn':2
                                  'search_release'  
                                     'search_rest'  '1929':10 '1929wma':12 'country':4 'exotica':2 'father':7 'is':9 'jazz':1 'loc':13 'music':6 'namerica':14 'old':5 'oldies':3 's':8 'wma':11
                                    'search_combo'  '1929':21 '1929wma':23 'a':4A 'and':6A 'charley':10B 'country':15 'dead':9A 'drunkard':5A 'exotica':13 'father':1A,18 'fathers':3A 'is':8A,20 'jazz':12 'loc':24 'mother':7A 'music':17 'namerica':25 'old':16 'oldies':14 's':2A,19 'vaughn':11B 'wma':22
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1929
                                     'discogstags'  ['country', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621628042.318134  (2021-05-21 22:14:02)
                             'size'  2985503