======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '158'
                                          'artist'  'Al Dexter & His Troopers'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  '221 Too late to worry, too blue to cry - Al Dexter & His Troopers (1-04-1944)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'q-syn-1', 'q-bass-1', "
 "'q-busy-2', 'q-grit-1', 'q-play-2', 'Q-OLDST-1', 'q-chart-2', 'q-drums-1', "
 "'q-other-4', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  ("['western swing', 'country', 'honky tonk', 'genre: country', "
 "'radio-moonlight-fun songs']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '221'
                                      'tracktotal'  ''
                                            'date'  '1944'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '91.846'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '91.846'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1944'
'TIT2' (Title/songname/content description)         '221 Too late to worry, too blue to cry - Al Dexter & His Troopers (1-04-1944)'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Al Dexter & His Troopers'
'TRCK' (Track number/Position in set)               '221'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['western swing',
 'country',
 'honky tonk',
 'genre: country',
 'radio-moonlight-fun songs']
'TXXX:q-bass'                                       '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.51 dB'
'TXXX:replaygain_track_peak'                        '0.365272'

========================== row from database ==========================
                                              'id'  1454880
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/221 Too late to worry, too blue to cry - Al Dexter & His Troopers (1-04-1944).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  158
                                           'genre'  prerock-unsorted
                                        'filesize'  2538289
                                           'mtime'  1621698061
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 prerock unsorted
                                      'tag_artist'  Al Dexter & His Troopers
                                     'tag_release'  None
                                       'tag_title'  221 Too late to worry, too blue to cry - Al Dexter & His Troopers (1-04-1944)
                                             'bpm'  91.846
                                    'search_title'  '04':14 '1':13 '1041944':16 '1944':15 '221':1 'al':9 'blue':7 'cry':8 'dexter':10 'his':11 'late':3 'to':4 'too':2 'troopers':12 'worry':5,6
                                   'search_artist'  'al':1 'dexter':2 'his':3 'troopers':4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1943':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'unsorted':8
                                    'search_combo'  '00oldiepop':25 '04':14A '1':13A '1041944':16A '1943':26 '1944':15A '221':1A 'al':9A,17B 'blue':7A 'country':24 'cry':8A 'dexter':10A,18B 'exotica':22 'his':11A,19B 'jazz':21 'late':3A 'oldies':23 'prerock':27 'to':4A 'too':2A 'troopers':12A,20B 'unsorted':28 'worry':5A,6A
                                    'tag_tracknum'  221
                                      'num_images'  0
                                             'key'  6B
                                           '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-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['western swing', 'country', 'honky tonk', 'genre: country', 'radio-moonlight-fun songs']
                                        'tag_date'  1944
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698061.199392  (2021-05-22 17:41:01)
                             'size'  2538289