======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '147'
                                          'artist'  'Huey (Piano) Smith & The Clowns'
                                     'text_people'  ''
                                         'release'  'Oldies But Goodies (3)'
                                           'title'  "Don't You Just Know It"
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['soul', 'oldies', 'new orleans', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '140.628'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-094 POS 9'
'COMM:ID3v1 Comment:XXX'                            '58-094 POS 9'
'TALB' (Album/Movie/Show title)                     'Oldies But Goodies (3)'
'TBPM' (BPM (beats per minute))                     '140.628'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         "Don't You Just Know It"
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Huey (Piano) Smith & The Clowns'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soul', 'oldies', 'new orleans', '60s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.50 dB'
'TXXX:replaygain_track_peak'                        '0.357781'

========================== row from database ==========================
                                              'id'  1520462
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-094 - Huey (Piano) Smith & The Clowns - Don_t You Just Know It.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  147
                                           'genre'  prerock-unsorted
                                        'filesize'  5914409
                                           'mtime'  1620387739
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 094 Don_t prerock unsorted
                                      'tag_artist'  Huey (Piano) Smith & The Clowns
                                     'tag_release'  Oldies But Goodies (3)
                                       'tag_title'  Don't You Just Know It
                                             'bpm'  140.628
                                    'search_title'  'don':1 'dont':3 'it':7 'just':5 'know':6 't':2 'you':4
                                   'search_artist'  'clowns':6 'huey':1 'piano':2,3 'smith':4 'the':5
                                  'search_release'  '3':4,5 'but':2 'goodies':3 'oldies':1
                                     'search_rest'  '00oldiepop':5 '1958':6 '58':7 'country':4 'don':8 'exotica':2 'jazz':1 'oldies':3 'prerock':10 't':9 'unsorted':11
                                    'search_combo'  '00oldiepop':23 '1958':24 '3':17C,18C '58':25 'but':15C 'clowns':13B 'country':22 'don':1A,26 'dont':3A 'exotica':20 'goodies':16C 'huey':8B 'it':7A 'jazz':19 'just':5A 'know':6A 'oldies':14C,21 'piano':9B,10B 'prerock':28 'smith':11B 't':2A,27 'the':12B 'unsorted':29 'you':4A
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  5B
                                           '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-3', 'q-busy-2', 'q-drums-4', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['soul', 'oldies', 'new orleans', '60s']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620387738.5082357  (2021-05-07 13:42:18)
                             'size'  5914409