======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '130'
                                          'artist'  'Tab Hunter'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I'll Be With You In Apple Blossom Time"
                                           '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-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['50s', 'easy listening', '60s', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '129.813'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '129.813'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         "I'll Be With You In Apple Blossom Time"
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tab Hunter'
'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:lastfmtags'                                   ['50s', 'easy listening', '60s', 'oldies', 'swing']
'TXXX:other'                                        '59-205'
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.92 dB'
'TXXX:replaygain_track_peak'                        '0.506594'

========================== row from database ==========================
                                              'id'  1520144
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-205 - Tab Hunter - I_ll Be With You In Apple Blossom Time.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  130
                                           'genre'  prerock-unsorted
                                        'filesize'  5240930
                                           'mtime'  1621698405
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 205 I_ll prerock unsorted
                                      'tag_artist'  Tab Hunter
                                     'tag_release'  None
                                       'tag_title'  I'll Be With You In Apple Blossom Time
                                             'bpm'  129.813
                                    'search_title'  'apple':8 'be':4 'blossom':9 'i':1 'ill':3 'in':7 'll':2 'time':10 'with':5 'you':6
                                   'search_artist'  'hunter':2 'tab':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1959':6 '205':8 '59':7 'country':4 'exotica':2 'i':9 'jazz':1 'll':10 'oldies':3 'prerock':11 'unsorted':12
                                    'search_combo'  '00oldiepop':17 '1959':18 '205':20 '59':19 'apple':8A 'be':4A 'blossom':9A 'country':16 'exotica':14 'hunter':12B 'i':1A,21 'ill':3A 'in':7A 'jazz':13 'll':2A,22 'oldies':15 'prerock':23 'tab':11B 'time':10A 'unsorted':24 'with':5A 'you':6A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           '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-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['50s', 'easy listening', '60s', 'oldies', 'swing']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698405.393735  (2021-05-22 17:46:45)
                             'size'  5240930