======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '279'
                                          'artist'  'Ukulele Orchestra of Great Britain'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Smells like teen spirit'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['ukulele', 'folk', 'british', 'cover', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-novelty-styledcovers;mi-ukulele;set-cover or covered'
                                             'bpm'  '123.482'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '123.482'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-novelty-styledcovers', 'mi-ukulele', 'set-cover or covered']
'TIT2' (Title/songname/content description)         'Smells like teen spirit'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ukulele Orchestra of Great Britain'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['ukulele', 'folk', 'british', 'cover', 'pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.17 dB'
'TXXX:replaygain_track_peak'                        '0.439495'

========================== row from database ==========================
                                              'id'  1293502
                                            'path'  /data/Music/Bulk/00spent/Ukelele Orchestra Of Great Britain/Ukulele Orchestra of Great Bri__Smells like teen spirit.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  279
                                           'genre'  set-th-novelty-styledcovers;mi-ukulele;set-cover or covered
                                        'filesize'  6710847
                                           'mtime'  1620527974
                                   'redo_metaread'  0
                                        'rest_str'   00spent Ukelele Of Bri__Smells set th novelty styledcovers;mi ukulele;set cover or covered
                                      'tag_artist'  Ukulele Orchestra of Great Britain
                                     'tag_release'  None
                                       'tag_title'  Smells like teen spirit
                                             'bpm'  123.482
                                    'search_title'  'like':2 'smells':1 'spirit':4 'teen':3
                                   'search_artist'  'britain':5 'great':4 'of':3 'orchestra':2 'ukulele':1
                                  'search_release'  
                                     'search_rest'  '00spent':1 'bri':4 'cover':17 'covered':19 'mi':10,12 'novelty':8 'of':3 'or':18 'set':6,14,16 'smells':5 'styledcovers':9,11 'th':7 'ukelele':2 'ukulele':13,15
                                    'search_combo'  '00spent':10 'bri':13 'britain':9B 'cover':26 'covered':28 'great':8B 'like':2A 'mi':19,21 'novelty':17 'of':7B,12 'or':27 'orchestra':6B 'set':15,23,25 'smells':1A,14 'spirit':4A 'styledcovers':18,20 'teen':3A 'th':16 'ukelele':11 'ukulele':5B,22,24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['ukulele', 'folk', 'british', 'cover', 'pop']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527973.6035352  (2021-05-09 04:39:33)
                             'size'  6710847