======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '171'
                                          'artist'  'Cliff Richard'
                                     'text_people'  ''
                                         'release'  'Bubbling Under 5'
                                           'title'  'I Only Have Eyes For You'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
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                                      'lastfmtags'  "['60s', '80s', 'pop', 'oldies', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '132'
                                      'tracktotal'  ''
                                            'date'  '1964'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted;rock-cppex'
                                             'bpm'  '102.075'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Bubbling Under 5'
'TBPM' (BPM (beats per minute))                     '102.075'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-unsorted', 'rock-cppex']
'TDRC' (Recording time)                             '1964'
'TIT2' (Title/songname/content description)         'I Only Have Eyes For You'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Cliff Richard'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '132'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['60s', '80s', 'pop', 'oldies', 'classic rock']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.41 dB'
'TXXX:replaygain_track_peak'                        '0.558294'

========================== row from database ==========================
                                              'id'  984790
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Bubbling under 5 (11-09-63)/132 Cliff Richard - I only have eyes for you (04-18-64).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  171
                                           'genre'  prerock-unsorted;rock-cppex
                                        'filesize'  2742061
                                           'mtime'  1620735941
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country under (11 09 63) 132 only have eyes for you (04 18 64) prerock unsorted;rock cppex
                                      'tag_artist'  Cliff Richard
                                     'tag_release'  Bubbling Under 5
                                       'tag_title'  I Only Have Eyes For You
                                             'bpm'  102.075
                                    'search_title'  'eyes':4 'for':5 'have':3 'i':1 'only':2 'you':6
                                   'search_artist'  'cliff':1 'richard':2
                                  'search_release'  '5':3 'bubbling':1 'under':2
                                     'search_rest'  '04':16,17 '11':6,7 '132':10 '18':18 '63':8,9 '64':19,20 'country':4 'cppex':26 'exotica':2 'eyes':13 'for':14 'have':12 'jazz':1 'oldies':3 'only':11 'prerock':21 'rock':23,25 'under':5 'unsorted':22,24 'you':15
                                    'search_combo'  '04':27,28 '11':17,18 '132':21 '18':29 '5':11C '63':19,20 '64':30,31 'bubbling':9C 'cliff':7B 'country':15 'cppex':37 'exotica':13 'eyes':4A,24 'for':5A,25 'have':3A,23 'i':1A 'jazz':12 'oldies':14 'only':2A,22 'prerock':32 'richard':8B 'rock':34,36 'under':10C,16 'unsorted':33,35 'you':6A,26
                                    'tag_tracknum'  132
                                      'num_images'  0
                                             'key'  12B
                                           '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-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['60s', '80s', 'pop', 'oldies', 'classic rock']
                                        'tag_date'  1964
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620735941.429363  (2021-05-11 14:25:41)
                             'size'  2742061