======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '161'
                                          'artist'  'Kilima Hawaiians'
                                     'text_people'  ''
                                         'release'  'Philips P 10216 R'
                                           'title'  'Kapitän Was Träumst Du'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['americana', 'edhits', 'myhitparade', 'myhits', 'deutsche schlager']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1953'
                                        'comments'  ''
                                           'genre'  'loc-islands-hawaii;loc-eur-netherlands;prerock-americana'
                                             'bpm'  '113.326'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Philips P 10216 R'
'TBPM' (BPM (beats per minute))                     '113.326'
'TCON' (Content type, a.k.a. Genre)                 ['loc-islands-hawaii', 'loc-eur-netherlands', 'prerock-americana']
'TDRC' (Recording time)                             '1953'
'TIT2' (Title/songname/content description)         'Kapitän Was Träumst Du'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kilima Hawaiians'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['americana', 'edhits', 'myhitparade', 'myhits', 'deutsche schlager']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.73 dB'
'TXXX:replaygain_track_peak'                        '0.573177'

========================== row from database ==========================
                                              'id'  1444593
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1953/Kilima Hawaiians - Kapitän Was Träumst Du 1953.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  161
                                           'genre'  loc-islands-hawaii;loc-eur-netherlands;prerock-americana
                                        'filesize'  3231473
                                           'mtime'  1620535397
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1953 1953 loc islands hawaii;loc eur netherlands;prerock americana
                                      'tag_artist'  Kilima Hawaiians
                                     'tag_release'  Philips P 10216 R
                                       'tag_title'  Kapitän Was Träumst Du
                                             'bpm'  113.326
                                    'search_title'  'du':6 'kapitan':1,2 'traumst':4,5 'was':3
                                   'search_artist'  'hawaiians':2 'kilima':1
                                  'search_release'  '10216':3 'p':2 'philips':1 'r':4
                                     'search_rest'  '00oldiepop':5 '1953':6 'americana':18 'country':4 'eur':13 'exotica':2 'hawaii':9,11 'islands':8 'jazz':1 'loc':7,10,12 'netherlands':14,16 'oldies':3 'prerock':15,17
                                    'search_combo'  '00oldiepop':17 '10216':11C '1953':18 'americana':30 'country':16 'du':6A 'eur':25 'exotica':14 'hawaii':21,23 'hawaiians':8B 'islands':20 'jazz':13 'kapitan':1A,2A 'kilima':7B 'loc':19,22,24 'netherlands':26,28 'oldies':15 'p':10C 'philips':9C 'prerock':27,29 'r':12C 'traumst':4A,5A 'was':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['americana', 'edhits', 'myhitparade', 'myhits', 'deutsche schlager']
                                        'tag_date'  1953
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620535396.829186  (2021-05-09 06:43:16)
                             'size'  3231473