======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '203'
                                          'artist'  'Matthias Steinwachs'
                                     'text_people'  ''
                                         'release'  'C64'
                                           'title'  ''
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'q-syn-3', 'q-bass-2', "
 "'q-busy-3', 'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-2', 'q-drums-3', "
 "'q-other-4', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'video game music', 'game', 'ambient', 'celtic']"
                                     'discogstags'  "['new age', 'electronic', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'soundtrack-game'
                                             'bpm'  '93.5'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'C64'
'TBPM' (BPM (beats per minute))                     '93.5'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-game'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Matthias Steinwachs'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['new age', 'electronic', 'ambient']
'TXXX:lastfmtags'                                   ['soundtrack', 'video game music', 'game', 'ambient', 'celtic']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.47 dB'
'TXXX:replaygain_track_peak'                        '0.691180'

========================== row from database ==========================
                                              'id'  1473814
                                            'path'  /data/Music/Bulk/0soundtrack/C64/Lionheart Intro (AMIGA).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  203
                                           'genre'  soundtrack-game
                                        'filesize'  4879290
                                           'mtime'  1644063128
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Lionheart Intro (AMIGA) soundtrack game
                                      'tag_artist'  Matthias Steinwachs
                                     'tag_release'  C64
                                       'tag_title'  None
                                             'bpm'  93.5
                                    'search_title'  None
                                   'search_artist'  'matthias':1 'steinwachs':2
                                  'search_release'  'c64':1
                                     'search_rest'  '0soundtrack':1 'amiga':4,5 'game':7 'intro':3 'lionheart':2 'soundtrack':6
                                    'search_combo'  '0soundtrack':4 'amiga':7,8 'c64':3C 'game':10 'intro':6 'lionheart':5 'matthias':1B 'soundtrack':9 'steinwachs':2B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['soundtrack', 'video game music', 'game', 'ambient', 'celtic']
                                        'tag_date'  
                                     'discogstags'  ['new age', 'electronic', 'ambient']

============================== file details ==============================
                                           'mtime'  1644063128.4985707  (2022-02-05 13:12:08)
                             'size'  4879290