======================== unified (from filesystem) ========================
                                         'bitrate'  '158.536'
                                        'duration'  '208'
                                          'artist'  'Ketil Bjørnstad'
                                     'text_people'  ''
                                         'release'  'The Nest'
                                           'title'  'Fear (feat Anneli Drecker)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', "
 "'q-grit-2', 'Q-JZFKS-2', 'Q-OLDST-1', 'Q-PIANO-4', 'q-chart-2', 'q-drums-1', "
 "'q-other-2', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['jazz', 'piano', 'norwegian', 'ecm', 'sonicuniverse']"
                                     'discogstags'  "['contemporary jazz', 'jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-vocal'
                                             'bpm'  '87.748'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Nest'
'TBPM' (BPM (beats per minute))                     '87.748'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-vocal'
'TIT2' (Title/songname/content description)         'Fear (feat Anneli Drecker)'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ketil Bjørnstad'
'TRCK' (Track number/Position in set)               '16'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['contemporary jazz', 'jazz']
'TXXX:lastfmtags'                                   ['jazz', 'piano', 'norwegian', 'ecm', 'sonicuniverse']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.02 dB'
'TXXX:replaygain_track_peak'                        '0.576345'

========================== row from database ==========================
                                              'id'  679297
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Ketil Bjørnstad/Ketil Bjornstad__The Nest__16 - Fear (feat Anneli Drecker).mp3
                                         'working'  None
                                         'bitrate'  158
                                    'duration_sec'  208
                                           'genre'  prerock-jb-jazz-vocal
                                        'filesize'  4135966
                                           'mtime'  1620530758
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Bjornstad__The Nest__16 prerock jb jazz vocal
                                      'tag_artist'  Ketil Bjørnstad
                                     'tag_release'  The Nest
                                       'tag_title'  Fear (feat Anneli Drecker)
                                             'bpm'  87.748
                                    'search_title'  'anneli':4 'drecker':5,6 'fear':1 'feat':2,3
                                   'search_artist'  'bjornstad':3 'bjørnstad':2 'ketil':1
                                  'search_release'  'nest':2 'the':1
                                     'search_rest'  '16':8 'bjornstad':5 'country':4 'exotica':2 'jazz':1 'jb':10 'nest':7 'oldies':3 'prerock':9 'the':6 'vocal':11
                                    'search_combo'  '16':19 'anneli':4A 'bjornstad':9B,16 'bjørnstad':8B 'country':15 'drecker':5A,6A 'exotica':13 'fear':1A 'feat':2A,3A 'jazz':12 'jb':21 'ketil':7B 'nest':11C,18 'oldies':14 'prerock':20 'the':10C,17 'vocal':22
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'piano', 'norwegian', 'ecm', 'sonicuniverse']
                                        'tag_date'  
                                     'discogstags'  ['contemporary jazz', 'jazz']

============================== file details ==============================
                                           'mtime'  1620530758.474639  (2021-05-09 05:25:58)
                             'size'  4135966