======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '133'
                                          'artist'  'Mitch Miller & His Orchestra'
                                     'text_people'  ''
                                         'release'  'COLUMBIA 40831'
                                           'title'  'A Very Special Love (Song For'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', '60s', 'usa', 'pop', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '467'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '141.413'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'COLUMBIA 40831'
'TBPM' (BPM (beats per minute))                     '141.413'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'A Very Special Love (Song For'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mitch Miller & His Orchestra'
'TRCK' (Track number/Position in set)               '467'
'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'                                   ['instrumental', '60s', 'usa', 'pop', '50s']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.68 dB'
'TXXX:replaygain_track_peak'                        '0.409737'

========================== row from database ==========================
                                              'id'  1450618
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/57-467 - Mitch Miller & His Orchestra - A Very Special Love (Song For The Ninth Day).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  133
                                           'genre'  prerock-swing
                                        'filesize'  5352085
                                           'mtime'  1620562651
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 57 467 The Ninth Day) prerock swing
                                      'tag_artist'  Mitch Miller & His Orchestra
                                     'tag_release'  COLUMBIA 40831
                                       'tag_title'  A Very Special Love (Song For
                                             'bpm'  141.413
                                    'search_title'  'a':1 'for':7 'love':4 'song':5,6 'special':3 'very':2
                                   'search_artist'  'his':3 'miller':2 'mitch':1 'orchestra':4
                                  'search_release'  '40831':2 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1957':6 '467':8 '57':7 'country':4 'day':11,12 'exotica':2 'jazz':1 'ninth':10 'oldies':3 'prerock':13 'swing':14 'the':9
                                    'search_combo'  '00oldiepop':18 '1957':19 '40831':13C '467':21 '57':20 'a':1A 'columbia':12C 'country':17 'day':24,25 'exotica':15 'for':7A 'his':10B 'jazz':14 'love':4A 'miller':9B 'mitch':8B 'ninth':23 'oldies':16 'orchestra':11B 'prerock':26 'song':5A,6A 'special':3A 'swing':27 'the':22 'very':2A
                                    'tag_tracknum'  467
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', '60s', 'usa', 'pop', '50s']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562650.5347815  (2021-05-09 14:17:30)
                             'size'  5352085