======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '3416'
                                          'artist'  'Bingo Gazingo'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'My Name Is Jacko'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['poetry', 'weird', 'beat poetry', 'outsider', 'spoken word']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza'
                                             'bpm'  '141.809'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '141.809'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-shirleyspinoza']
'TIT2' (Title/songname/content description)         'My Name Is Jacko'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bingo Gazingo'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '151,199'
'TXXX:Mp3gain_undo'                                 '+002,+002,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Sortunder'                                    'b'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['poetry', 'weird', 'beat poetry', 'outsider', 'spoken word']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.84 dB'
'TXXX:replaygain_track_peak'                        '0.815107'

========================== row from database ==========================
                                              'id'  870257
                                            'path'  /data/Music/Bulk/sns/BingoGazingo_MyNameIsJacko_0005.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  3416
                                           'genre'  set-pl-shirleyspinoza
                                        'filesize'  54659429
                                           'mtime'  1621044067
                                   'redo_metaread'  0
                                        'rest_str'   sns BingoGazingo_MyNameIsJacko_0005 set pl shirleyspinoza
                                      'tag_artist'  Bingo Gazingo
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  My Name Is Jacko
                                             'bpm'  141.809
                                    'search_title'  'is':3 'jacko':4 'my':1 'name':2
                                   'search_artist'  'bingo':1 'gazingo':2
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  '0005':4,14 'bingo':8 'bingogazingo':2 'gazingo':9 'is':12 'jacko':13 'my':10 'mynameisjacko':3 'name':11 'pl':6 'set':5 'shirleyspinoza':7 'sns':1
                                    'search_combo'  '0005':12,22 'bingo':5B,16 'bingogazingo':10 'gazingo':6B,17 'is':3A,20 'jacko':4A,21 'my':1A,18 'mynameisjacko':11 'name':2A,19 'pl':14 'set':13 'shirley':7C 'shirleyspinoza':15 'sns':9 'spinoza':8C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['poetry', 'weird', 'beat poetry', 'outsider', 'spoken word']
                                        'tag_date'  
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621044067.0851135  (2021-05-15 04:01:07)
                             'size'  54659429