======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '198'
                                          'artist'  'Sexteto Electronico Moderno'
                                     'text_people'  ''
                                         'release'  "You Can't Judge a Song By Its Cover"
                                           'title'  'In the Year 2525'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-3', 'q-syn-2', 'q-bass-3', "
 "'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-2', 'q-drums-2', 'q-other-4', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['instrumental', 'lounge', 'funk', 'latin jazz', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-cover or covered-styled;set-cover or covered'
                                             'bpm'  '134.199'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "You Can't Judge a Song By Its Cover"
'TBPM' (BPM (beats per minute))                     '134.199'
'TCON' (Content type, a.k.a. Genre)                 ['set-cover or covered-styled', 'set-cover or covered']
'TIT2' (Title/songname/content description)         'In the Year 2525'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sexteto Electronico Moderno'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'lounge', 'funk', 'latin jazz', '60s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.35 dB'
'TXXX:replaygain_track_peak'                        '0.596836'

========================== row from database ==========================
                                              'id'  1530818
                                            'path'  /data/Music/Bulk/00poprockelectronic/you can_t judge a song by its cover/-00-Sexteto Electronico Moderno-In the Year 2525.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  198
                                           'genre'  set-cover or covered-styled;set-cover or covered
                                        'filesize'  7927680
                                           'mtime'  1638540268
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic you can_t judge song by its cover 00 set cover or covered styled;set cover or covered
                                      'tag_artist'  Sexteto Electronico Moderno
                                     'tag_release'  You Can't Judge a Song By Its Cover
                                       'tag_title'  In the Year 2525
                                             'bpm'  134.199
                                    'search_title'  '2525':4 'in':1 'the':2 'year':3
                                   'search_artist'  'electronico':2 'moderno':3 'sexteto':1
                                  'search_release'  'a':6 'by':8 'can':2 'cant':4 'cover':10 'its':9 'judge':5 'song':7 't':3 'you':1
                                     'search_rest'  '00':10 '00poprockelectronic':1 'by':7 'can':3 'cover':9 'covered':13 'its':8 'judge':5 'or':12 'set':11,15,17 'song':6 'styled':14,16 't':4 'you':2
                                    'search_combo'  '00':27 '00poprockelectronic':18 '2525':4A 'a':13C 'by':15C,24 'can':9C,20 'cant':11C 'cover':17C,26 'covered':30 'electronico':6B 'in':1A 'its':16C,25 'judge':12C,22 'moderno':7B 'or':29 'set':28,32,34 'sexteto':5B 'song':14C,23 'styled':31,33 't':10C,21 'the':2A 'year':3A 'you':8C,19
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'lounge', 'funk', 'latin jazz', '60s']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638540268.491767  (2021-12-03 15:04:28)
                             'size'  7927680