======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '283'
                                          'artist'  'Ike and Tina turner'
                                     'text_people'  ''
                                         'release'  'The Later Lounge'
                                           'title'  'Ike & Tina Turner - Whole Lotta Love'
                                           'quals'  ("['Q-UNU-1', 'Q-HAP-2', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-OLDST-2', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['soul', 'rhythm and blues', 'blues', 'funk', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '104.877'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Later Lounge'
'TBPM' (BPM (beats per minute))                     '104.877'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TIT2' (Title/songname/content description)         'Ike & Tina Turner - Whole Lotta Love'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '283036'
'TPE1' (Lead performer(s)/Soloist(s))               'Ike and Tina turner'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soul', 'rhythm and blues', 'blues', 'funk', '60s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.70 dB'
'TXXX:replaygain_track_peak'                        '0.511033'

========================== row from database ==========================
                                              'id'  1315998
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Ike & Tina Turner - Whole Lotta Love.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  283
                                           'genre'  prerock-jb-blues
                                        'filesize'  4530636
                                           'mtime'  1620403811
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] prerock jb blues
                                      'tag_artist'  Ike and Tina turner
                                     'tag_release'  The Later Lounge
                                       'tag_title'  Ike & Tina Turner - Whole Lotta Love
                                             'bpm'  104.877
                                    'search_title'  'ike':1 'lotta':5 'love':6 'tina':2 'turner':3 'whole':4
                                   'search_artist'  'and':2 'ike':1 'tina':3 'turner':4
                                  'search_release'  'later':2 'lounge':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 'blues':9 'files':5,6 'jb':8 'loose':3,4 'prerock':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':14 'and':8B 'blues':22 'files':18,19 'ike':1A,7B 'jb':21 'later':12C 'loose':16,17 'lotta':5A 'lounge':13C 'love':6A 'prerock':20 'the':11C 'tina':2A,9B 'turner':3A,10B 'unsorted':15 'whole':4A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'rhythm and blues', 'blues', 'funk', '60s']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620403811.3928294  (2021-05-07 18:10:11)
                             'size'  4530636