======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '152'
                                          'artist'  'Tex Ritter'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Christmas Carols By the Old Corral'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'cowboy', 'country roots', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted;set-th-christmas'
                                             'bpm'  '86.659'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '86.659'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-unsorted', 'set-th-christmas']
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         'Christmas Carols By the Old Corral'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tex Ritter'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'cowboy', 'country roots', 'classic country']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+1.65 dB'
'TXXX:replaygain_track_peak'                        '0.576028'
'UFID:'                                             UFID(owner='', data=b'XL\x00 CH1945_002')

========================== row from database ==========================
                                              'id'  1448791
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1945/ch1945_002 - tex ritter - christmas carols by the old corral 80 m (2.32).mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  152
                                           'genre'  prerock-unsorted;set-th-christmas
                                        'filesize'  1526269
                                           'mtime'  1620343016
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1945 ch1945_002 tex ritter christmas carols by old corral 80 (2.32) prerock unsorted;set christmas
                                      'tag_artist'  Tex Ritter
                                     'tag_release'  None
                                       'tag_title'  Christmas Carols By the Old Corral
                                             'bpm'  86.659
                                    'search_title'  'by':3 'carols':2 'christmas':1 'corral':6 'old':5 'the':4
                                   'search_artist'  'ritter':2 'tex':1
                                  'search_release'  
                                     'search_rest'  '002':8 '00oldiepop':5 '1945':6 '2':17 '232':19 '32':18 '80':16 'by':13 'carols':12 'ch1945':7 'christmas':11 'corral':15 'country':4 'exotica':2 'jazz':1 'old':14 'oldies':3 'prerock':20 'ritter':10 'set':22,24 'tex':9 'unsorted':21,23
                                    'search_combo'  '002':16 '00oldiepop':13 '1945':14 '2':25 '232':27 '32':26 '80':24 'by':3A,21 'carols':2A,20 'ch1945':15 'christmas':1A,19 'corral':6A,23 'country':12 'exotica':10 'jazz':9 'old':5A,22 'oldies':11 'prerock':28 'ritter':8B,18 'set':30,32 'tex':7B,17 'the':4A 'unsorted':29,31
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', '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-1', 'q-other-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['country', 'cowboy', 'country roots', 'classic country']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343015.9125035  (2021-05-07 01:16:55)
                             'size'  1526269