======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '252'
                                          'artist'  'Europe'
                                     'text_people'  ''
                                         'release'  'The Final Countdown'
                                           'title'  'Cherokee'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'classic rock', 'hair metal', 'hard rock', 'rock']"
                                     'discogstags'  "['trance', 'techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '110.302'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Final Countdown'
'TBPM' (BPM (beats per minute))                     '110.302'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'Cherokee'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Europe'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['trance', 'techno', 'electronic']
'TXXX:lastfmtags'                                   ['80s', 'classic rock', 'hair metal', 'hard rock', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'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'                        '-0.31 dB'
'TXXX:replaygain_track_peak'                        '0.649881'

========================== row from database ==========================
                                              'id'  1334874
                                            'path'  /data/Music/Bulk/00poprockelectronic/album top 1000/0266 Europe - Definitive Collection/04 - Cherokee.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  252
                                           'genre'  rock-cppex-classic
                                        'filesize'  4042238
                                           'mtime'  1636039386
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic album top 1000 0266 Definitive Collection 04 rock cppex classic
                                      'tag_artist'  Europe
                                     'tag_release'  The Final Countdown
                                       'tag_title'  Cherokee
                                             'bpm'  110.302
                                    'search_title'  'cherokee':1
                                   'search_artist'  'europe':1
                                  'search_release'  'countdown':3 'final':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 '0266':5 '1000':4 'album':2 'classic':10 'collection':7 'cppex':9 'definitive':6 'rock':8 'top':3
                                    'search_combo'  '00poprockelectronic':6 '0266':10 '1000':9 'album':7 'cherokee':1A 'classic':15 'collection':12 'countdown':5C 'cppex':14 'definitive':11 'europe':2B 'final':4C 'rock':13 'the':3C 'top':8
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'classic rock', 'hair metal', 'hard rock', 'rock']
                                        'tag_date'  1986
                                     'discogstags'  ['trance', 'techno', 'electronic']

============================== file details ==============================
                                           'mtime'  1636039386.2739015  (2021-11-04 16:23:06)
                             'size'  4042238