======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '254'
                                          'artist'  'Jeroen Tel '
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Dan Dare 3'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-1', "
 "'q-play-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-2', 'q-drums-3', 'q-other-2', "
 "'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['chiptune', 'video game music', 'c64', 'demoscene', 'game music']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'electronic-we-beeps or chip or pico'
                                             'bpm'  '100.356'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '100.356'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-beeps or chip or pico'
'TDRC' (Recording time)                             '1990'
'TENC' (Encoded by)                                 'Ripped with Streamripper'
'TIT2' (Title/songname/content description)         'Dan Dare 3'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jeroen Tel '
'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:lastfmtags'                                   ['chiptune', 'video game music', 'c64', 'demoscene', 'game music']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-7.97 dB'
'TXXX:replaygain_track_peak'                        '2.639617'

========================== row from database ==========================
                                              'id'  258820
                                            'path'  /data/Music/Bulk/0soundtrack/5 Stars - Game Music/Jeroen Tel - Dan Dare 3.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  254
                                           'genre'  electronic-we-beeps or chip or pico
                                        'filesize'  4075006
                                           'mtime'  1621489485
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack 5 Stars Game Music electronic we beeps or chip or pico
                                      'tag_artist'  Jeroen Tel 
                                     'tag_release'  None
                                       'tag_title'  Dan Dare 3
                                             'bpm'  100.356
                                    'search_title'  '3':3 'dan':1 'dare':2
                                   'search_artist'  'jeroen':1 'tel':2
                                  'search_release'  
                                     'search_rest'  '0soundtrack':1 '5':2 'beeps':8 'chip':10 'electronic':6 'game':4 'music':5 'or':9 'pico':11 'stars':3 'we':7
                                    'search_combo'  '0soundtrack':6 '3':3A '5':7 'beeps':13 'chip':15 'dan':1A 'dare':2A 'electronic':11 'game':9 'jeroen':4B 'music':10 'or':14 'pico':16 'stars':8 'tel':5B 'we':12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['chiptune', 'video game music', 'c64', 'demoscene', 'game music']
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621489485.0593488  (2021-05-20 07:44:45)
                             'size'  4075006