======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '177'
                                          'artist'  'Will Bradley & His Boogie Woogie Boys'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Cryin' the Boogie Blues"
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '181'
                                      'tracktotal'  ''
                                            'date'  '1944'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '84.000'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '84.000'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1944'
'TIT2' (Title/songname/content description)         "Cryin' the Boogie Blues"
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Will Bradley & His Boogie Woogie Boys'
'TRCK' (Track number/Position in set)               '181'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.31 dB'
'TXXX:replaygain_track_peak'                        '0.450795'

========================== row from database ==========================
                                              'id'  1515441
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/181 Cryin_ the Boogie Blues - Will Bradley & His Boogie Woogie Boys (29-01-1944).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  177
                                           'genre'  prerock-unsorted
                                        'filesize'  2841727
                                           'mtime'  1620386953
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 181 Cryin_ (29 01 1944) prerock unsorted
                                      'tag_artist'  Will Bradley & His Boogie Woogie Boys
                                     'tag_release'  None
                                       'tag_title'  Cryin' the Boogie Blues
                                             'bpm'  84.0
                                    'search_title'  'blues':5 'boogie':4 'cryin':1,2 'the':3
                                   'search_artist'  'boogie':4 'boys':6 'bradley':2 'his':3 'will':1 'woogie':5
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '181':7 '1943':6 '1944':11,12 '29':9,10 'country':4 'cryin':8 'exotica':2 'jazz':1 'oldies':3 'prerock':13 'unsorted':14
                                    'search_combo'  '00oldiepop':16 '181':18 '1943':17 '1944':22,23 '29':20,21 'blues':5A 'boogie':4A,9B 'boys':11B 'bradley':7B 'country':15 'cryin':1A,2A,19 'exotica':13 'his':8B 'jazz':12 'oldies':14 'prerock':24 'the':3A 'unsorted':25 'will':6B 'woogie':10B
                                    'tag_tracknum'  181
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-2', 'q-other-4', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1944
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620386952.9648552  (2021-05-07 13:29:12)
                             'size'  2841727