======================== unified (from filesystem) ========================
                                         'bitrate'  '91.471'
                                        'duration'  '97'
                                          'artist'  'Hank Snow'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'DEAD END STREET'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'singer songwriter', 'honky tonk', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '141.710'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '141.710'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         'DEAD END STREET'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Hank Snow'
'TPE2' (Band/orchestra/accompaniment)               'Hank Snow'
'TPOS' (Part of a set)                              '1/1'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:AverageLevel'                                 '5938'
'TXXX:PeakValue'                                    '32767'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'singer songwriter', 'honky tonk', 'classic country']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.72 dB'
'TXXX:replaygain_track_peak'                        '0.455055'

========================== row from database ==========================
                                              'id'  966598
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Hank Snow - DEAD END STREET.wma.mp3
                                         'working'  None
                                         'bitrate'  91
                                    'duration_sec'  97
                                           'genre'  loc-namerica-country
                                        'filesize'  1112697
                                           'mtime'  1621628137
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music STREET.wma loc namerica country
                                      'tag_artist'  Hank Snow
                                     'tag_release'  None
                                       'tag_title'  DEAD END STREET
                                             'bpm'  141.71
                                    'search_title'  'dead':1 'end':2 'street':3
                                   'search_artist'  'hank':1 'snow':2
                                  'search_release'  
                                     'search_rest'  'country':4 'exotica':2 'jazz':1 'loc':10 'music':6 'namerica':11 'old':5 'oldies':3 'street':7 'streetwma':9 'wma':8
                                    'search_combo'  'country':9 'dead':1A 'end':2A 'exotica':7 'hank':4B 'jazz':6 'loc':15 'music':11 'namerica':16 'old':10 'oldies':8 'snow':5B 'street':3A,12 'streetwma':14 'wma':13
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['country', 'singer songwriter', 'honky tonk', 'classic country']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628136.5466316  (2021-05-21 22:15:36)
                             'size'  1112697