======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '2188'
                                          'artist'  'DrinkingStraw trk09'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'DrinkingStraw trk09'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-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-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza'
                                             'bpm'  '131.243'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '131.243'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-shirleyspinoza']
'TIT2' (Title/songname/content description)         'DrinkingStraw trk09'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'DrinkingStraw trk09'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '-2.91 dB'
'TXXX:replaygain_track_peak'                        '1.175676'
'TXXX:sortunder'                                    'd'

========================== row from database ==========================
                                              'id'  886441
                                            'path'  /data/Music/Bulk/sns/DrinkingStraw_trk09_0007.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  2188
                                           'genre'  set-pl-shirleyspinoza
                                        'filesize'  35014701
                                           'mtime'  1621488833
                                   'redo_metaread'  0
                                        'rest_str'   sns DrinkingStraw_trk09_0007 set pl shirleyspinoza
                                      'tag_artist'  DrinkingStraw trk09
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  DrinkingStraw trk09
                                             'bpm'  131.243
                                    'search_title'  'drinking':3 'drinkingstraw':1 'straw':4 'trk09':2
                                   'search_artist'  'drinking':3 'drinkingstraw':1 'straw':4 'trk09':2
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  '0007':4,11 'drinking':8 'drinkingstraw':2 'pl':6 'set':5 'shirleyspinoza':7 'sns':1 'straw':9 'trk09':3,10
                                    'search_combo'  '0007':14,21 'drinking':3A,7B,18 'drinkingstraw':1A,5B,12 'pl':16 'set':15 'shirley':9C 'shirleyspinoza':17 'sns':11 'spinoza':10C 'straw':4A,8B,19 'trk09':2A,6B,13,20
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', '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'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621488833.3964987  (2021-05-20 07:33:53)
                             'size'  35014701