======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '172'
                                          'artist'  'The Dells'
                                     'text_people'  ''
                                         'release'  'Best of Oldies But Goodies Vol 3'
                                           'title'  'Oh What A Night'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['northern soul', 'oldies', 'soul', 'doo wop', 'rhythm and blues', '7soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '141.118'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Best of Oldies But Goodies Vol 3'
'TBPM' (BPM (beats per minute))                     '141.118'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TIT2' (Title/songname/content description)         'Oh What A Night'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Dells'
'TPE2' (Band/orchestra/accompaniment)               'The Dells'
'TRCK' (Track number/Position in set)               '13'
'TXXX:FMPS_Rating'                                  '0.4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['northern soul', 'oldies', 'soul', 'doo wop', 'rhythm and blues', '7soul']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.38 dB'
'TXXX:replaygain_track_peak'                        '0.552190'

========================== row from database ==========================
                                              'id'  1327557
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/The Dells__cifs2488.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  172
                                           'genre'  rock-unsorted
                                        'filesize'  2765618
                                           'mtime'  1620392370
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Dells__cifs2488 rock unsorted
                                      'tag_artist'  The Dells
                                     'tag_release'  Best of Oldies But Goodies Vol 3
                                       'tag_title'  Oh What A Night
                                             'bpm'  141.118
                                    'search_title'  'a':3 'night':4 'oh':1 'what':2
                                   'search_artist'  'dells':2 'the':1
                                  'search_release'  '3':7 'best':1 'but':4 'goodies':5 'of':2 'oldies':3 'vol':6
                                     'search_rest'  '00poprockelectronic':1 'cifs2488':8 'dells':7 'files':5,6 'loose':3,4 'rock':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':14 '3':13C 'a':3A 'best':7C 'but':10C 'cifs2488':21 'dells':6B,20 'files':18,19 'goodies':11C 'loose':16,17 'night':4A 'of':8C 'oh':1A 'oldies':9C 'rock':22 'the':5B 'unsorted':15 'vol':12C 'what':2A
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['northern soul', 'oldies', 'soul', 'doo wop', 'rhythm and blues', '7soul']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620392369.9608827  (2021-05-07 14:59:29)
                             'size'  2765618