======================== unified (from filesystem) ========================
                                         'bitrate'  '118.241'
                                        'duration'  '163'
                                          'artist'  'Montana Slim (Wilf Carter)'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'DEAR OLD DADDY OF MINE'
                                           '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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '98.645'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '98.645'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         'DEAR OLD DADDY OF MINE'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Montana Slim (Wilf Carter)'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '1'
'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: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'                        '+1.70 dB'
'TXXX:replaygain_track_peak'                        '0.584785'

========================== row from database ==========================
                                              'id'  968169
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Wilf Carter (Montana Slim) - Dear Old Daddy Of Mine (1935).wma.mp3
                                         'working'  None
                                         'bitrate'  118
                                    'duration_sec'  163
                                           'genre'  loc-namerica-country
                                        'filesize'  2423027
                                           'mtime'  1621628315
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music (Montana Slim) Dear Old Daddy Of Mine (1935).wma loc namerica country
                                      'tag_artist'  Montana Slim (Wilf Carter)
                                     'tag_release'  None
                                       'tag_title'  DEAR OLD DADDY OF MINE
                                             'bpm'  98.645
                                    'search_title'  'daddy':3 'dear':1 'mine':5 'of':4 'old':2
                                   'search_artist'  'carter':5,6 'montana':1 'slim':2 'wilf':3,4
                                  'search_release'  
                                     'search_rest'  '1935':15 '1935wma':17 'country':4 'daddy':12 'dear':11 'exotica':2 'jazz':1 'loc':18 'mine':14 'montana':7,8 'music':6 'namerica':19 'of':13 'old':5 'oldies':3 'slim':9,10 'wma':16
                                    'search_combo'  '1935':26 '1935wma':28 'carter':10B,11B 'country':15 'daddy':3A,23 'dear':1A,22 'exotica':13 'jazz':12 'loc':29 'mine':5A,25 'montana':6B,18,19 'music':17 'namerica':30 'of':4A,24 'old':2A,16 'oldies':14 'slim':7B,20,21 'wilf':8B,9B 'wma':27
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2B
                                           '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'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628315.1205213  (2021-05-21 22:18:35)
                             'size'  2423027