======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '165'
                                          'artist'  'Lawrence Welk & Wayne Marsh'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "220 Don't sweetheart me - Lawrence Welk & Wayne Marsh (25-03-1944)"
                                           'quals'  ("['Q-HAP-3', '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-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '220'
                                      'tracktotal'  ''
                                            'date'  '1944'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '146.000'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1944'
'TIT2' (Title/songname/content description)         "220 Don't sweetheart me - Lawrence Welk & Wayne Marsh (25-03-1944)"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Lawrence Welk & Wayne Marsh'
'TRCK' (Track number/Position in set)               '220'
'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: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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.75 dB'
'TXXX:replaygain_track_peak'                        '0.366042'

========================== row from database ==========================
                                              'id'  1497434
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/220 Don_t sweetheart me - Lawrence Welk & Wayne Marsh (25-03-1944).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  165
                                           'genre'  prerock-unsorted
                                        'filesize'  2647794
                                           'mtime'  1621698061
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 Don_t prerock unsorted
                                      'tag_artist'  Lawrence Welk & Wayne Marsh
                                     'tag_release'  None
                                       'tag_title'  220 Don't sweetheart me - Lawrence Welk & Wayne Marsh (25-03-1944)
                                             'bpm'  146.0
                                    'search_title'  '03':12 '1944':13 '220':1 '25':11 '25031944':14 'don':2 'dont':4 'lawrence':7 'marsh':10 'me':6 'sweetheart':5 't':3 'wayne':9 'welk':8
                                   'search_artist'  'lawrence':1 'marsh':4 'wayne':3 'welk':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1943':6 'country':4 'don':7 'exotica':2 'jazz':1 'oldies':3 'prerock':9 't':8 'unsorted':10
                                    'search_combo'  '00oldiepop':23 '03':12A '1943':24 '1944':13A '220':1A '25':11A '25031944':14A 'country':22 'don':2A,25 'dont':4A 'exotica':20 'jazz':19 'lawrence':7A,15B 'marsh':10A,18B 'me':6A 'oldies':21 'prerock':27 'sweetheart':5A 't':3A,26 'unsorted':28 'wayne':9A,17B 'welk':8A,16B
                                    'tag_tracknum'  220
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1944
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698061.139373  (2021-05-22 17:41:01)
                             'size'  2647794