======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '238'
                                          'artist'  'Whitney Houston'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Saving All My Love For You'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'rnb', 'female vocalists', 'soul', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '132.271'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '132.271'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Saving All My Love For You'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Whitney Houston'
'TPE2' (Band/orchestra/accompaniment)               'Whitney Houston'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'rnb', 'female vocalists', 'soul', 'pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.70 dB'
'TXXX:replaygain_track_peak'                        '0.361503'

========================== row from database ==========================
                                              'id'  1317073
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Whitney Houston - Saving All My Love For You [].mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  238
                                           'genre'  funk or soul
                                        'filesize'  5735021
                                           'mtime'  1628357704
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] [] funk soul
                                      'tag_artist'  Whitney Houston
                                     'tag_release'  None
                                       'tag_title'  Saving All My Love For You
                                             'bpm'  132.271
                                    'search_title'  'all':2 'for':5 'love':4 'my':3 'saving':1 'you':6
                                   'search_artist'  'houston':2 'whitney':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'funk':7 'loose':3,4 'soul':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 'all':2A 'files':13,14 'for':5A 'funk':15 'houston':8B 'loose':11,12 'love':4A 'my':3A 'saving':1A 'soul':16 'unsorted':10 'whitney':7B 'you':6A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-2', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'rnb', 'female vocalists', 'soul', 'pop']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357704.105553  (2021-08-07 19:35:04)
                             'size'  5735021