======================== unified (from filesystem) ========================
                                         'bitrate'  '207.131'
                                        'duration'  '286'
                                          'artist'  'The Brand New Heavies'
                                     'text_people'  ''
                                         'release'  'Brother Sister'
                                           'title'  'Brother Sister'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'acid jazz', 'chillout', 'soul', 'funk']"
                                     'discogstags'  "['electronic', 'funk / soul', 'acid jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '145.267'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Brother Sister'
'TBPM' (BPM (beats per minute))                     '145.267'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Brother Sister'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Brand New Heavies'
'TXXX:Fmps_playcount'                               '1'
'TXXX:Fmps_rating'                                  '0.6'
'TXXX:Fmps_rating_amarok_score'                     '0.125'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'funk / soul', 'acid jazz']
'TXXX:lastfmtags'                                   ['jazz', 'acid jazz', 'chillout', 'soul', 'funk']
'TXXX:original release date'                        ['1994', '1994']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.05 dB'
'TXXX:replaygain_track_peak'                        '0.526574'

========================== row from database ==========================
                                              'id'  1382430
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/The Brand New Heavies - Brother Sister/02 - Bother Sister.mp3
                                         'working'  None
                                         'bitrate'  207
                                    'duration_sec'  286
                                           'genre'  funk or soul
                                        'filesize'  7425046
                                           'mtime'  1628357898
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul 02 Bother funk or soul
                                      'tag_artist'  The Brand New Heavies
                                     'tag_release'  Brother Sister
                                       'tag_title'  Brother Sister
                                             'bpm'  145.267
                                    'search_title'  'brother':1 'sister':2
                                   'search_artist'  'brand':2 'heavies':4 'new':3 'the':1
                                  'search_release'  'brother':1 'sister':2
                                     'search_rest'  'bother':4 'funk':2 'or':5 'soul':3 'swing':1
                                    'search_combo'  'bother':12 'brand':4B 'brother':1A,7C 'funk':10 'heavies':6B 'new':5B 'or':13 'sister':2A,8C 'soul':11 'swing':9 'the':3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'acid jazz', 'chillout', 'soul', 'funk']
                                        'tag_date'  1994
                                     'discogstags'  ['electronic', 'funk / soul', 'acid jazz']

============================== file details ==============================
                                           'mtime'  1628357898.2865126  (2021-08-07 19:38:18)
                             'size'  7425046