======================== unified (from filesystem) ========================
                                         'bitrate'  '104.268'
                                        'duration'  '160'
                                          'artist'  'Bob Wills & His Texas Playboys'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Time Changes Everything'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', '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']")
                                      'lastfmtags'  "['classic country', 'western swing', 'all', '40s', 'country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '98.120'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '98.120'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         'Time Changes Everything'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Wills & His Texas Playboys'
'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:lastfmtags'                                   ['classic country', 'western swing', 'all', '40s', 'country']
'TXXX:q-bass'                                       '3'
'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'                        '+0.74 dB'
'TXXX:replaygain_track_peak'                        '0.595681'

========================== row from database ==========================
                                              'id'  966395
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Bob Wills & His Texas Playboys - Time Changes Everything.wma.mp3
                                         'working'  None
                                         'bitrate'  104
                                    'duration_sec'  160
                                           'genre'  loc-namerica-country
                                        'filesize'  2101474
                                           'mtime'  1621628026
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music Everything.wma loc namerica country
                                      'tag_artist'  Bob Wills & His Texas Playboys
                                     'tag_release'  None
                                       'tag_title'  Time Changes Everything
                                             'bpm'  98.12
                                    'search_title'  'changes':2 'everything':3 'time':1
                                   'search_artist'  'bob':1 'his':3 'playboys':5 'texas':4 'wills':2
                                  'search_release'  
                                     'search_rest'  'country':4 'everything':7 'everythingwma':9 'exotica':2 'jazz':1 'loc':10 'music':6 'namerica':11 'old':5 'oldies':3 'wma':8
                                    'search_combo'  'bob':4B 'changes':2A 'country':12 'everything':3A,15 'everythingwma':17 'exotica':10 'his':6B 'jazz':9 'loc':18 'music':14 'namerica':19 'old':13 'oldies':11 'playboys':8B 'texas':7B 'time':1A 'wills':5B 'wma':16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           '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-3', 'q-grit-2']
                                      'lastfmtags'  ['classic country', 'western swing', 'all', '40s', 'country']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628026.1191316  (2021-05-21 22:13:46)
                             'size'  2101474