======================== unified (from filesystem) ========================
                                         'bitrate'  '319.983'
                                        'duration'  '481'
                                          'artist'  'Miraculum'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Rendezvous (Original Mix)'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', "
 "'q-vocals-1']")
                                      'lastfmtags'  ("['trance', 'deep', 'miraculum trance progressive melodic dance deep', 'tech "
 "house', 'deep tech house']")
                                     'discogstags'  "['progressive house', 'electronic', 'tech house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '117.9'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '117.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TIT2' (Title/songname/content description)         'Rendezvous (Original Mix)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Miraculum'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['progressive house', 'electronic', 'tech house']
'TXXX:lastfmtags'                                   ['trance',
 'deep',
 'miraculum trance progressive melodic dance deep',
 'tech house',
 'deep tech house']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.01 dB'
'TXXX:replaygain_track_peak'                        '0.534475'

========================== row from database ==========================
                                              'id'  1347545
                                            'path'  /data/Music/Bulk/00poprockelectronic/deep house/Miraculum - Rendezvous (Original Mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  481
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  19368111
                                           'mtime'  1621085300
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic deep house electronic th techno minimal or deephouse
                                      'tag_artist'  Miraculum
                                     'tag_release'  None
                                       'tag_title'  Rendezvous (Original Mix)
                                             'bpm'  117.9
                                    'search_title'  'mix':4,5 'original':2,3 'rendezvous':1
                                   'search_artist'  'miraculum':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'deep':2 'deephouse':9 'electronic':4 'house':3 'minimal':7 'or':8 'techno':6 'th':5
                                    'search_combo'  '00poprockelectronic':7 'deep':8 'deephouse':15 'electronic':10 'house':9 'minimal':13 'miraculum':6B 'mix':4A,5A 'or':14 'original':2A,3A 'rendezvous':1A 'techno':12 'th':11
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['trance', 'deep', 'miraculum trance progressive melodic dance deep', 'tech house', 'deep tech house']
                                        'tag_date'  
                                     'discogstags'  ['progressive house', 'electronic', 'tech house']

============================== file details ==============================
                                           'mtime'  1621085299.8260205  (2021-05-15 15:28:19)
                             'size'  19368111