======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '360'
                                          'artist'  'jeroen tel'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'savage 1-4'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['video game music', 'c64', 'chiptune', 'game music', 'demoscene']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-we-beeps or chip or pico'
                                             'bpm'  '125.238'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '125.238'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-beeps or chip or pico'
'TIT2' (Title/songname/content description)         'savage 1-4'
'TKEY' (Initial key)                                '9A'
'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'                                   ['video game music', 'c64', 'chiptune', 'game music', 'demoscene']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.65 dB'
'TXXX:replaygain_track_peak'                        '0.833379'

========================== row from database ==========================
                                              'id'  255410
                                            'path'  /data/Music/Bulk/0soundtrack/5 Stars - Game Music/Jeroen Tel - Savage (Tune 4).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  360
                                           'genre'  electronic-we-beeps or chip or pico
                                        'filesize'  5764988
                                           'mtime'  1621489490
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack 5 Stars Game Music Jeroen Tel Savage (Tune 4) electronic we beeps or chip or pico
                                      'tag_artist'  jeroen tel
                                     'tag_release'  None
                                       'tag_title'  savage 1-4
                                             'bpm'  125.238
                                    'search_title'  '1':2 '14':4 '4':3 'savage':1
                                   'search_artist'  'jeroen':1 'tel':2
                                  'search_release'  
                                     'search_rest'  '0soundtrack':1 '4':11,12 '5':2 'beeps':15 'chip':17 'electronic':13 'game':4 'jeroen':6 'music':5 'or':16 'pico':18 'savage':8 'stars':3 'tel':7 'tune':9,10 'we':14
                                    'search_combo'  '0soundtrack':7 '1':2A '14':4A '4':3A,17,18 '5':8 'beeps':21 'chip':23 'electronic':19 'game':10 'jeroen':5B,12 'music':11 'or':22 'pico':24 'savage':1A,14 'stars':9 'tel':6B,13 'tune':15,16 'we':20
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['video game music', 'c64', 'chiptune', 'game music', 'demoscene']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621489490.2145987  (2021-05-20 07:44:50)
                             'size'  5764988