======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '156'
                                          'artist'  'Jimmy Dorsey'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Jay Dee's Boogie Woogie"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'jazz', 'big band', '40s', 'swing', 'saxophone']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '401'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '145.790'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.790'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         "Jay Dee's Boogie Woogie"
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimmy Dorsey'
'TRCK' (Track number/Position in set)               '401'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'jazz', 'big band', '40s', 'swing', 'saxophone']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.94 dB'
'TXXX:replaygain_track_peak'                        '0.559364'

========================== row from database ==========================
                                              'id'  1496965
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/57-401 - Jimmy Dorsey - Jay Dee_s Boogie Woogie.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  156
                                           'genre'  prerock-swing
                                        'filesize'  6274726
                                           'mtime'  1620562645
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 57 401 Dee_s prerock swing
                                      'tag_artist'  Jimmy Dorsey
                                     'tag_release'  None
                                       'tag_title'  Jay Dee's Boogie Woogie
                                             'bpm'  145.79
                                    'search_title'  'boogie':5 'dee':2 'dees':4 'jay':1 's':3 'woogie':6
                                   'search_artist'  'dorsey':2 'jimmy':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1957':6 '401':8 '57':7 'country':4 'dee':9 'exotica':2 'jazz':1 'oldies':3 'prerock':11 's':10 'swing':12
                                    'search_combo'  '00oldiepop':13 '1957':14 '401':16 '57':15 'boogie':5A 'country':12 'dee':2A,17 'dees':4A 'dorsey':8B 'exotica':10 'jay':1A 'jazz':9 'jimmy':7B 'oldies':11 'prerock':19 's':3A,18 'swing':20 'woogie':6A
                                    'tag_tracknum'  401
                                      'num_images'  0
                                             'key'  11A
                                           '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-2', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'jazz', 'big band', '40s', 'swing', 'saxophone']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562644.7013342  (2021-05-09 14:17:24)
                             'size'  6274726